ffmpeg / libavcodec / h264.c @ 8ed2ae09
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/*
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* H.26L/H.264/AVC/JVT/14496-10/... decoder
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* Copyright (c) 2003 Michael Niedermayer <michaelni@gmx.at>
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*
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* This file is part of Libav.
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*
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* Libav is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* Libav is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with Libav; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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/**
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* @file
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* H.264 / AVC / MPEG4 part10 codec.
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* @author Michael Niedermayer <michaelni@gmx.at>
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*/
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#include "libavutil/imgutils.h" |
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#include "internal.h" |
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#include "dsputil.h" |
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#include "avcodec.h" |
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#include "mpegvideo.h" |
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#include "h264.h" |
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#include "h264data.h" |
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#include "h264_mvpred.h" |
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#include "golomb.h" |
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#include "mathops.h" |
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#include "rectangle.h" |
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#include "vdpau_internal.h" |
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#include "libavutil/avassert.h" |
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#include "cabac.h" |
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//#undef NDEBUG
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#include <assert.h> |
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static const uint8_t rem6[52]={ |
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0, 1, 2, 3, 4, 5, 0, 1, 2, 3, 4, 5, 0, 1, 2, 3, 4, 5, 0, 1, 2, 3, 4, 5, 0, 1, 2, 3, 4, 5, 0, 1, 2, 3, 4, 5, 0, 1, 2, 3, 4, 5, 0, 1, 2, 3, 4, 5, 0, 1, 2, 3, |
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}; |
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static const uint8_t div6[52]={ |
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0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 2, 2, 2, 2, 2, 2, 3, 3, 3, 3, 3, 3, 4, 4, 4, 4, 4, 4, 5, 5, 5, 5, 5, 5, 6, 6, 6, 6, 6, 6, 7, 7, 7, 7, 7, 7, 8, 8, 8, 8, |
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}; |
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static const enum PixelFormat hwaccel_pixfmt_list_h264_jpeg_420[] = { |
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PIX_FMT_DXVA2_VLD, |
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PIX_FMT_VAAPI_VLD, |
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PIX_FMT_YUVJ420P, |
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PIX_FMT_NONE |
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}; |
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void ff_h264_write_back_intra_pred_mode(H264Context *h){
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int8_t *mode= h->intra4x4_pred_mode + h->mb2br_xy[h->mb_xy]; |
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AV_COPY32(mode, h->intra4x4_pred_mode_cache + 4 + 8*4); |
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mode[4]= h->intra4x4_pred_mode_cache[7+8*3]; |
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mode[5]= h->intra4x4_pred_mode_cache[7+8*2]; |
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mode[6]= h->intra4x4_pred_mode_cache[7+8*1]; |
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} |
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/**
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* checks if the top & left blocks are available if needed & changes the dc mode so it only uses the available blocks.
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*/
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int ff_h264_check_intra4x4_pred_mode(H264Context *h){
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MpegEncContext * const s = &h->s;
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static const int8_t top [12]= {-1, 0,LEFT_DC_PRED,-1,-1,-1,-1,-1, 0}; |
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static const int8_t left[12]= { 0,-1, TOP_DC_PRED, 0,-1,-1,-1, 0,-1,DC_128_PRED}; |
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int i;
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if(!(h->top_samples_available&0x8000)){ |
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for(i=0; i<4; i++){ |
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int status= top[ h->intra4x4_pred_mode_cache[scan8[0] + i] ]; |
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if(status<0){ |
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av_log(h->s.avctx, AV_LOG_ERROR, "top block unavailable for requested intra4x4 mode %d at %d %d\n", status, s->mb_x, s->mb_y);
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return -1; |
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} else if(status){ |
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h->intra4x4_pred_mode_cache[scan8[0] + i]= status;
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} |
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} |
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} |
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if((h->left_samples_available&0x8888)!=0x8888){ |
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static const int mask[4]={0x8000,0x2000,0x80,0x20}; |
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for(i=0; i<4; i++){ |
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if(!(h->left_samples_available&mask[i])){
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int status= left[ h->intra4x4_pred_mode_cache[scan8[0] + 8*i] ]; |
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if(status<0){ |
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av_log(h->s.avctx, AV_LOG_ERROR, "left block unavailable for requested intra4x4 mode %d at %d %d\n", status, s->mb_x, s->mb_y);
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return -1; |
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} else if(status){ |
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h->intra4x4_pred_mode_cache[scan8[0] + 8*i]= status; |
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} |
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} |
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} |
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} |
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return 0; |
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} //FIXME cleanup like ff_h264_check_intra_pred_mode
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/**
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* checks if the top & left blocks are available if needed & changes the dc mode so it only uses the available blocks.
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*/
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int ff_h264_check_intra_pred_mode(H264Context *h, int mode){ |
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MpegEncContext * const s = &h->s;
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static const int8_t top [7]= {LEFT_DC_PRED8x8, 1,-1,-1}; |
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static const int8_t left[7]= { TOP_DC_PRED8x8,-1, 2,-1,DC_128_PRED8x8}; |
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if(mode > 6U) { |
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av_log(h->s.avctx, AV_LOG_ERROR, "out of range intra chroma pred mode at %d %d\n", s->mb_x, s->mb_y);
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return -1; |
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} |
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if(!(h->top_samples_available&0x8000)){ |
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mode= top[ mode ]; |
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if(mode<0){ |
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av_log(h->s.avctx, AV_LOG_ERROR, "top block unavailable for requested intra mode at %d %d\n", s->mb_x, s->mb_y);
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return -1; |
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} |
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} |
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if((h->left_samples_available&0x8080) != 0x8080){ |
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mode= left[ mode ]; |
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if(h->left_samples_available&0x8080){ //mad cow disease mode, aka MBAFF + constrained_intra_pred |
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mode= ALZHEIMER_DC_L0T_PRED8x8 + (!(h->left_samples_available&0x8000)) + 2*(mode == DC_128_PRED8x8); |
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} |
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if(mode<0){ |
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av_log(h->s.avctx, AV_LOG_ERROR, "left block unavailable for requested intra mode at %d %d\n", s->mb_x, s->mb_y);
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return -1; |
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} |
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} |
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return mode;
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} |
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const uint8_t *ff_h264_decode_nal(H264Context *h, const uint8_t *src, int *dst_length, int *consumed, int length){ |
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int i, si, di;
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uint8_t *dst; |
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int bufidx;
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// src[0]&0x80; //forbidden bit
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h->nal_ref_idc= src[0]>>5; |
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h->nal_unit_type= src[0]&0x1F; |
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src++; length--; |
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#if 0
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for(i=0; i<length; i++)
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printf("%2X ", src[i]);
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#endif
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#if HAVE_FAST_UNALIGNED
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# if HAVE_FAST_64BIT
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# define RS 7 |
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for(i=0; i+1<length; i+=9){ |
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if(!((~AV_RN64A(src+i) & (AV_RN64A(src+i) - 0x0100010001000101ULL)) & 0x8000800080008080ULL)) |
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# else
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# define RS 3 |
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for(i=0; i+1<length; i+=5){ |
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if(!((~AV_RN32A(src+i) & (AV_RN32A(src+i) - 0x01000101U)) & 0x80008080U)) |
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# endif
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continue;
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if(i>0 && !src[i]) i--; |
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while(src[i]) i++;
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#else
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# define RS 0 |
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for(i=0; i+1<length; i+=2){ |
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if(src[i]) continue; |
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if(i>0 && src[i-1]==0) i--; |
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#endif
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if(i+2<length && src[i+1]==0 && src[i+2]<=3){ |
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if(src[i+2]!=3){ |
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/* startcode, so we must be past the end */
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length=i; |
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} |
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break;
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} |
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i-= RS; |
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} |
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if(i>=length-1){ //no escaped 0 |
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*dst_length= length; |
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*consumed= length+1; //+1 for the header |
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return src;
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} |
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bufidx = h->nal_unit_type == NAL_DPC ? 1 : 0; // use second escape buffer for inter data |
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av_fast_malloc(&h->rbsp_buffer[bufidx], &h->rbsp_buffer_size[bufidx], length+FF_INPUT_BUFFER_PADDING_SIZE); |
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dst= h->rbsp_buffer[bufidx]; |
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if (dst == NULL){ |
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return NULL; |
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} |
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//printf("decoding esc\n");
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memcpy(dst, src, i); |
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si=di=i; |
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while(si+2<length){ |
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//remove escapes (very rare 1:2^22)
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if(src[si+2]>3){ |
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dst[di++]= src[si++]; |
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dst[di++]= src[si++]; |
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}else if(src[si]==0 && src[si+1]==0){ |
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if(src[si+2]==3){ //escape |
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dst[di++]= 0;
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dst[di++]= 0;
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si+=3;
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continue;
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}else //next start code |
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goto nsc;
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} |
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dst[di++]= src[si++]; |
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} |
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while(si<length)
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dst[di++]= src[si++]; |
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nsc:
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memset(dst+di, 0, FF_INPUT_BUFFER_PADDING_SIZE);
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*dst_length= di; |
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*consumed= si + 1;//+1 for the header |
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//FIXME store exact number of bits in the getbitcontext (it is needed for decoding)
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return dst;
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} |
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/**
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* Identify the exact end of the bitstream
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* @return the length of the trailing, or 0 if damaged
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*/
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static int ff_h264_decode_rbsp_trailing(H264Context *h, const uint8_t *src){ |
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int v= *src;
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int r;
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tprintf(h->s.avctx, "rbsp trailing %X\n", v);
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for(r=1; r<9; r++){ |
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if(v&1) return r; |
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v>>=1;
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} |
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return 0; |
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} |
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#if 0
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/**
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* DCT transforms the 16 dc values.
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* @param qp quantization parameter ??? FIXME
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*/
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static void h264_luma_dc_dct_c(DCTELEM *block/*, int qp*/){
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// const int qmul= dequant_coeff[qp][0];
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int i;
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int temp[16]; //FIXME check if this is a good idea
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static const int x_offset[4]={0, 1*stride, 4* stride, 5*stride};
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static const int y_offset[4]={0, 2*stride, 8* stride, 10*stride};
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for(i=0; i<4; i++){
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const int offset= y_offset[i];
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const int z0= block[offset+stride*0] + block[offset+stride*4];
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const int z1= block[offset+stride*0] - block[offset+stride*4];
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const int z2= block[offset+stride*1] - block[offset+stride*5];
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const int z3= block[offset+stride*1] + block[offset+stride*5];
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temp[4*i+0]= z0+z3;
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temp[4*i+1]= z1+z2;
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temp[4*i+2]= z1-z2;
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temp[4*i+3]= z0-z3;
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}
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for(i=0; i<4; i++){
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const int offset= x_offset[i];
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const int z0= temp[4*0+i] + temp[4*2+i];
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const int z1= temp[4*0+i] - temp[4*2+i];
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const int z2= temp[4*1+i] - temp[4*3+i];
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const int z3= temp[4*1+i] + temp[4*3+i];
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block[stride*0 +offset]= (z0 + z3)>>1;
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block[stride*2 +offset]= (z1 + z2)>>1;
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block[stride*8 +offset]= (z1 - z2)>>1;
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block[stride*10+offset]= (z0 - z3)>>1;
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}
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}
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#endif
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#undef xStride
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#undef stride
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static void chroma_dc_dequant_idct_c(DCTELEM *block, int qmul){ |
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const int stride= 16*2; |
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const int xStride= 16; |
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int a,b,c,d,e;
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a= block[stride*0 + xStride*0]; |
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b= block[stride*0 + xStride*1]; |
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c= block[stride*1 + xStride*0]; |
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d= block[stride*1 + xStride*1]; |
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e= a-b; |
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a= a+b; |
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b= c-d; |
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c= c+d; |
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block[stride*0 + xStride*0]= ((a+c)*qmul) >> 7; |
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block[stride*0 + xStride*1]= ((e+b)*qmul) >> 7; |
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block[stride*1 + xStride*0]= ((a-c)*qmul) >> 7; |
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block[stride*1 + xStride*1]= ((e-b)*qmul) >> 7; |
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} |
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#if 0
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static void chroma_dc_dct_c(DCTELEM *block){
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const int stride= 16*2;
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const int xStride= 16;
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int a,b,c,d,e;
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a= block[stride*0 + xStride*0];
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b= block[stride*0 + xStride*1];
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c= block[stride*1 + xStride*0];
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d= block[stride*1 + xStride*1];
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e= a-b;
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a= a+b;
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b= c-d;
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c= c+d;
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block[stride*0 + xStride*0]= (a+c);
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block[stride*0 + xStride*1]= (e+b);
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block[stride*1 + xStride*0]= (a-c);
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block[stride*1 + xStride*1]= (e-b);
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}
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#endif
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static inline void mc_dir_part(H264Context *h, Picture *pic, int n, int square, int chroma_height, int delta, int list, |
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uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr, |
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int src_x_offset, int src_y_offset, |
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qpel_mc_func *qpix_op, h264_chroma_mc_func chroma_op){ |
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MpegEncContext * const s = &h->s;
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const int mx= h->mv_cache[list][ scan8[n] ][0] + src_x_offset*8; |
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int my= h->mv_cache[list][ scan8[n] ][1] + src_y_offset*8; |
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const int luma_xy= (mx&3) + ((my&3)<<2); |
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uint8_t * src_y = pic->data[0] + (mx>>2) + (my>>2)*h->mb_linesize; |
348 |
uint8_t * src_cb, * src_cr; |
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int extra_width= h->emu_edge_width;
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int extra_height= h->emu_edge_height;
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int emu=0; |
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const int full_mx= mx>>2; |
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const int full_my= my>>2; |
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const int pic_width = 16*s->mb_width; |
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const int pic_height = 16*s->mb_height >> MB_FIELD; |
356 |
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if(mx&7) extra_width -= 3; |
358 |
if(my&7) extra_height -= 3; |
359 |
|
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if( full_mx < 0-extra_width |
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|| full_my < 0-extra_height
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|| full_mx + 16/*FIXME*/ > pic_width + extra_width |
363 |
|| full_my + 16/*FIXME*/ > pic_height + extra_height){ |
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s->dsp.emulated_edge_mc(s->edge_emu_buffer, src_y - 2 - 2*h->mb_linesize, h->mb_linesize, 16+5, 16+5/*FIXME*/, full_mx-2, full_my-2, pic_width, pic_height); |
365 |
src_y= s->edge_emu_buffer + 2 + 2*h->mb_linesize; |
366 |
emu=1;
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} |
368 |
|
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qpix_op[luma_xy](dest_y, src_y, h->mb_linesize); //FIXME try variable height perhaps?
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if(!square){
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qpix_op[luma_xy](dest_y + delta, src_y + delta, h->mb_linesize); |
372 |
} |
373 |
|
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if(CONFIG_GRAY && s->flags&CODEC_FLAG_GRAY) return; |
375 |
|
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if(MB_FIELD){
|
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// chroma offset when predicting from a field of opposite parity
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my += 2 * ((s->mb_y & 1) - (pic->reference - 1)); |
379 |
emu |= (my>>3) < 0 || (my>>3) + 8 >= (pic_height>>1); |
380 |
} |
381 |
src_cb= pic->data[1] + (mx>>3) + (my>>3)*h->mb_uvlinesize; |
382 |
src_cr= pic->data[2] + (mx>>3) + (my>>3)*h->mb_uvlinesize; |
383 |
|
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if(emu){
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s->dsp.emulated_edge_mc(s->edge_emu_buffer, src_cb, h->mb_uvlinesize, 9, 9/*FIXME*/, (mx>>3), (my>>3), pic_width>>1, pic_height>>1); |
386 |
src_cb= s->edge_emu_buffer; |
387 |
} |
388 |
chroma_op(dest_cb, src_cb, h->mb_uvlinesize, chroma_height, mx&7, my&7); |
389 |
|
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if(emu){
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s->dsp.emulated_edge_mc(s->edge_emu_buffer, src_cr, h->mb_uvlinesize, 9, 9/*FIXME*/, (mx>>3), (my>>3), pic_width>>1, pic_height>>1); |
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src_cr= s->edge_emu_buffer; |
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} |
394 |
chroma_op(dest_cr, src_cr, h->mb_uvlinesize, chroma_height, mx&7, my&7); |
395 |
} |
396 |
|
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static inline void mc_part_std(H264Context *h, int n, int square, int chroma_height, int delta, |
398 |
uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr, |
399 |
int x_offset, int y_offset, |
400 |
qpel_mc_func *qpix_put, h264_chroma_mc_func chroma_put, |
401 |
qpel_mc_func *qpix_avg, h264_chroma_mc_func chroma_avg, |
402 |
int list0, int list1){ |
403 |
MpegEncContext * const s = &h->s;
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qpel_mc_func *qpix_op= qpix_put; |
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h264_chroma_mc_func chroma_op= chroma_put; |
406 |
|
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dest_y += 2*x_offset + 2*y_offset*h-> mb_linesize; |
408 |
dest_cb += x_offset + y_offset*h->mb_uvlinesize; |
409 |
dest_cr += x_offset + y_offset*h->mb_uvlinesize; |
410 |
x_offset += 8*s->mb_x;
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y_offset += 8*(s->mb_y >> MB_FIELD);
|
412 |
|
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if(list0){
|
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Picture *ref= &h->ref_list[0][ h->ref_cache[0][ scan8[n] ] ]; |
415 |
mc_dir_part(h, ref, n, square, chroma_height, delta, 0,
|
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dest_y, dest_cb, dest_cr, x_offset, y_offset, |
417 |
qpix_op, chroma_op); |
418 |
|
419 |
qpix_op= qpix_avg; |
420 |
chroma_op= chroma_avg; |
421 |
} |
422 |
|
423 |
if(list1){
|
424 |
Picture *ref= &h->ref_list[1][ h->ref_cache[1][ scan8[n] ] ]; |
425 |
mc_dir_part(h, ref, n, square, chroma_height, delta, 1,
|
426 |
dest_y, dest_cb, dest_cr, x_offset, y_offset, |
427 |
qpix_op, chroma_op); |
428 |
} |
429 |
} |
430 |
|
431 |
static inline void mc_part_weighted(H264Context *h, int n, int square, int chroma_height, int delta, |
432 |
uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr, |
433 |
int x_offset, int y_offset, |
434 |
qpel_mc_func *qpix_put, h264_chroma_mc_func chroma_put, |
435 |
h264_weight_func luma_weight_op, h264_weight_func chroma_weight_op, |
436 |
h264_biweight_func luma_weight_avg, h264_biweight_func chroma_weight_avg, |
437 |
int list0, int list1){ |
438 |
MpegEncContext * const s = &h->s;
|
439 |
|
440 |
dest_y += 2*x_offset + 2*y_offset*h-> mb_linesize; |
441 |
dest_cb += x_offset + y_offset*h->mb_uvlinesize; |
442 |
dest_cr += x_offset + y_offset*h->mb_uvlinesize; |
443 |
x_offset += 8*s->mb_x;
|
444 |
y_offset += 8*(s->mb_y >> MB_FIELD);
|
445 |
|
446 |
if(list0 && list1){
|
447 |
/* don't optimize for luma-only case, since B-frames usually
|
448 |
* use implicit weights => chroma too. */
|
449 |
uint8_t *tmp_cb = s->obmc_scratchpad; |
450 |
uint8_t *tmp_cr = s->obmc_scratchpad + 8;
|
451 |
uint8_t *tmp_y = s->obmc_scratchpad + 8*h->mb_uvlinesize;
|
452 |
int refn0 = h->ref_cache[0][ scan8[n] ]; |
453 |
int refn1 = h->ref_cache[1][ scan8[n] ]; |
454 |
|
455 |
mc_dir_part(h, &h->ref_list[0][refn0], n, square, chroma_height, delta, 0, |
456 |
dest_y, dest_cb, dest_cr, |
457 |
x_offset, y_offset, qpix_put, chroma_put); |
458 |
mc_dir_part(h, &h->ref_list[1][refn1], n, square, chroma_height, delta, 1, |
459 |
tmp_y, tmp_cb, tmp_cr, |
460 |
x_offset, y_offset, qpix_put, chroma_put); |
461 |
|
462 |
if(h->use_weight == 2){ |
463 |
int weight0 = h->implicit_weight[refn0][refn1][s->mb_y&1]; |
464 |
int weight1 = 64 - weight0; |
465 |
luma_weight_avg( dest_y, tmp_y, h-> mb_linesize, 5, weight0, weight1, 0); |
466 |
chroma_weight_avg(dest_cb, tmp_cb, h->mb_uvlinesize, 5, weight0, weight1, 0); |
467 |
chroma_weight_avg(dest_cr, tmp_cr, h->mb_uvlinesize, 5, weight0, weight1, 0); |
468 |
}else{
|
469 |
luma_weight_avg(dest_y, tmp_y, h->mb_linesize, h->luma_log2_weight_denom, |
470 |
h->luma_weight[refn0][0][0] , h->luma_weight[refn1][1][0], |
471 |
h->luma_weight[refn0][0][1] + h->luma_weight[refn1][1][1]); |
472 |
chroma_weight_avg(dest_cb, tmp_cb, h->mb_uvlinesize, h->chroma_log2_weight_denom, |
473 |
h->chroma_weight[refn0][0][0][0] , h->chroma_weight[refn1][1][0][0], |
474 |
h->chroma_weight[refn0][0][0][1] + h->chroma_weight[refn1][1][0][1]); |
475 |
chroma_weight_avg(dest_cr, tmp_cr, h->mb_uvlinesize, h->chroma_log2_weight_denom, |
476 |
h->chroma_weight[refn0][0][1][0] , h->chroma_weight[refn1][1][1][0], |
477 |
h->chroma_weight[refn0][0][1][1] + h->chroma_weight[refn1][1][1][1]); |
478 |
} |
479 |
}else{
|
480 |
int list = list1 ? 1 : 0; |
481 |
int refn = h->ref_cache[list][ scan8[n] ];
|
482 |
Picture *ref= &h->ref_list[list][refn]; |
483 |
mc_dir_part(h, ref, n, square, chroma_height, delta, list, |
484 |
dest_y, dest_cb, dest_cr, x_offset, y_offset, |
485 |
qpix_put, chroma_put); |
486 |
|
487 |
luma_weight_op(dest_y, h->mb_linesize, h->luma_log2_weight_denom, |
488 |
h->luma_weight[refn][list][0], h->luma_weight[refn][list][1]); |
489 |
if(h->use_weight_chroma){
|
490 |
chroma_weight_op(dest_cb, h->mb_uvlinesize, h->chroma_log2_weight_denom, |
491 |
h->chroma_weight[refn][list][0][0], h->chroma_weight[refn][list][0][1]); |
492 |
chroma_weight_op(dest_cr, h->mb_uvlinesize, h->chroma_log2_weight_denom, |
493 |
h->chroma_weight[refn][list][1][0], h->chroma_weight[refn][list][1][1]); |
494 |
} |
495 |
} |
496 |
} |
497 |
|
498 |
static inline void mc_part(H264Context *h, int n, int square, int chroma_height, int delta, |
499 |
uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr, |
500 |
int x_offset, int y_offset, |
501 |
qpel_mc_func *qpix_put, h264_chroma_mc_func chroma_put, |
502 |
qpel_mc_func *qpix_avg, h264_chroma_mc_func chroma_avg, |
503 |
h264_weight_func *weight_op, h264_biweight_func *weight_avg, |
504 |
int list0, int list1){ |
505 |
if((h->use_weight==2 && list0 && list1 |
506 |
&& (h->implicit_weight[ h->ref_cache[0][scan8[n]] ][ h->ref_cache[1][scan8[n]] ][h->s.mb_y&1] != 32)) |
507 |
|| h->use_weight==1)
|
508 |
mc_part_weighted(h, n, square, chroma_height, delta, dest_y, dest_cb, dest_cr, |
509 |
x_offset, y_offset, qpix_put, chroma_put, |
510 |
weight_op[0], weight_op[3], weight_avg[0], weight_avg[3], list0, list1); |
511 |
else
|
512 |
mc_part_std(h, n, square, chroma_height, delta, dest_y, dest_cb, dest_cr, |
513 |
x_offset, y_offset, qpix_put, chroma_put, qpix_avg, chroma_avg, list0, list1); |
514 |
} |
515 |
|
516 |
static inline void prefetch_motion(H264Context *h, int list){ |
517 |
/* fetch pixels for estimated mv 4 macroblocks ahead
|
518 |
* optimized for 64byte cache lines */
|
519 |
MpegEncContext * const s = &h->s;
|
520 |
const int refn = h->ref_cache[list][scan8[0]]; |
521 |
if(refn >= 0){ |
522 |
const int mx= (h->mv_cache[list][scan8[0]][0]>>2) + 16*s->mb_x + 8; |
523 |
const int my= (h->mv_cache[list][scan8[0]][1]>>2) + 16*s->mb_y; |
524 |
uint8_t **src= h->ref_list[list][refn].data; |
525 |
int off= mx + (my + (s->mb_x&3)*4)*h->mb_linesize + 64; |
526 |
s->dsp.prefetch(src[0]+off, s->linesize, 4); |
527 |
off= (mx>>1) + ((my>>1) + (s->mb_x&7))*s->uvlinesize + 64; |
528 |
s->dsp.prefetch(src[1]+off, src[2]-src[1], 2); |
529 |
} |
530 |
} |
531 |
|
532 |
static void hl_motion(H264Context *h, uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr, |
533 |
qpel_mc_func (*qpix_put)[16], h264_chroma_mc_func (*chroma_put),
|
534 |
qpel_mc_func (*qpix_avg)[16], h264_chroma_mc_func (*chroma_avg),
|
535 |
h264_weight_func *weight_op, h264_biweight_func *weight_avg){ |
536 |
MpegEncContext * const s = &h->s;
|
537 |
const int mb_xy= h->mb_xy; |
538 |
const int mb_type= s->current_picture.mb_type[mb_xy]; |
539 |
|
540 |
assert(IS_INTER(mb_type)); |
541 |
|
542 |
prefetch_motion(h, 0);
|
543 |
|
544 |
if(IS_16X16(mb_type)){
|
545 |
mc_part(h, 0, 1, 8, 0, dest_y, dest_cb, dest_cr, 0, 0, |
546 |
qpix_put[0], chroma_put[0], qpix_avg[0], chroma_avg[0], |
547 |
weight_op, weight_avg, |
548 |
IS_DIR(mb_type, 0, 0), IS_DIR(mb_type, 0, 1)); |
549 |
}else if(IS_16X8(mb_type)){ |
550 |
mc_part(h, 0, 0, 4, 8, dest_y, dest_cb, dest_cr, 0, 0, |
551 |
qpix_put[1], chroma_put[0], qpix_avg[1], chroma_avg[0], |
552 |
&weight_op[1], &weight_avg[1], |
553 |
IS_DIR(mb_type, 0, 0), IS_DIR(mb_type, 0, 1)); |
554 |
mc_part(h, 8, 0, 4, 8, dest_y, dest_cb, dest_cr, 0, 4, |
555 |
qpix_put[1], chroma_put[0], qpix_avg[1], chroma_avg[0], |
556 |
&weight_op[1], &weight_avg[1], |
557 |
IS_DIR(mb_type, 1, 0), IS_DIR(mb_type, 1, 1)); |
558 |
}else if(IS_8X16(mb_type)){ |
559 |
mc_part(h, 0, 0, 8, 8*h->mb_linesize, dest_y, dest_cb, dest_cr, 0, 0, |
560 |
qpix_put[1], chroma_put[1], qpix_avg[1], chroma_avg[1], |
561 |
&weight_op[2], &weight_avg[2], |
562 |
IS_DIR(mb_type, 0, 0), IS_DIR(mb_type, 0, 1)); |
563 |
mc_part(h, 4, 0, 8, 8*h->mb_linesize, dest_y, dest_cb, dest_cr, 4, 0, |
564 |
qpix_put[1], chroma_put[1], qpix_avg[1], chroma_avg[1], |
565 |
&weight_op[2], &weight_avg[2], |
566 |
IS_DIR(mb_type, 1, 0), IS_DIR(mb_type, 1, 1)); |
567 |
}else{
|
568 |
int i;
|
569 |
|
570 |
assert(IS_8X8(mb_type)); |
571 |
|
572 |
for(i=0; i<4; i++){ |
573 |
const int sub_mb_type= h->sub_mb_type[i]; |
574 |
const int n= 4*i; |
575 |
int x_offset= (i&1)<<2; |
576 |
int y_offset= (i&2)<<1; |
577 |
|
578 |
if(IS_SUB_8X8(sub_mb_type)){
|
579 |
mc_part(h, n, 1, 4, 0, dest_y, dest_cb, dest_cr, x_offset, y_offset, |
580 |
qpix_put[1], chroma_put[1], qpix_avg[1], chroma_avg[1], |
581 |
&weight_op[3], &weight_avg[3], |
582 |
IS_DIR(sub_mb_type, 0, 0), IS_DIR(sub_mb_type, 0, 1)); |
583 |
}else if(IS_SUB_8X4(sub_mb_type)){ |
584 |
mc_part(h, n , 0, 2, 4, dest_y, dest_cb, dest_cr, x_offset, y_offset, |
585 |
qpix_put[2], chroma_put[1], qpix_avg[2], chroma_avg[1], |
586 |
&weight_op[4], &weight_avg[4], |
587 |
IS_DIR(sub_mb_type, 0, 0), IS_DIR(sub_mb_type, 0, 1)); |
588 |
mc_part(h, n+2, 0, 2, 4, dest_y, dest_cb, dest_cr, x_offset, y_offset+2, |
589 |
qpix_put[2], chroma_put[1], qpix_avg[2], chroma_avg[1], |
590 |
&weight_op[4], &weight_avg[4], |
591 |
IS_DIR(sub_mb_type, 0, 0), IS_DIR(sub_mb_type, 0, 1)); |
592 |
}else if(IS_SUB_4X8(sub_mb_type)){ |
593 |
mc_part(h, n , 0, 4, 4*h->mb_linesize, dest_y, dest_cb, dest_cr, x_offset, y_offset, |
594 |
qpix_put[2], chroma_put[2], qpix_avg[2], chroma_avg[2], |
595 |
&weight_op[5], &weight_avg[5], |
596 |
IS_DIR(sub_mb_type, 0, 0), IS_DIR(sub_mb_type, 0, 1)); |
597 |
mc_part(h, n+1, 0, 4, 4*h->mb_linesize, dest_y, dest_cb, dest_cr, x_offset+2, y_offset, |
598 |
qpix_put[2], chroma_put[2], qpix_avg[2], chroma_avg[2], |
599 |
&weight_op[5], &weight_avg[5], |
600 |
IS_DIR(sub_mb_type, 0, 0), IS_DIR(sub_mb_type, 0, 1)); |
601 |
}else{
|
602 |
int j;
|
603 |
assert(IS_SUB_4X4(sub_mb_type)); |
604 |
for(j=0; j<4; j++){ |
605 |
int sub_x_offset= x_offset + 2*(j&1); |
606 |
int sub_y_offset= y_offset + (j&2); |
607 |
mc_part(h, n+j, 1, 2, 0, dest_y, dest_cb, dest_cr, sub_x_offset, sub_y_offset, |
608 |
qpix_put[2], chroma_put[2], qpix_avg[2], chroma_avg[2], |
609 |
&weight_op[6], &weight_avg[6], |
610 |
IS_DIR(sub_mb_type, 0, 0), IS_DIR(sub_mb_type, 0, 1)); |
611 |
} |
612 |
} |
613 |
} |
614 |
} |
615 |
|
616 |
prefetch_motion(h, 1);
|
617 |
} |
618 |
|
619 |
|
620 |
static void free_tables(H264Context *h, int free_rbsp){ |
621 |
int i;
|
622 |
H264Context *hx; |
623 |
av_freep(&h->intra4x4_pred_mode); |
624 |
av_freep(&h->chroma_pred_mode_table); |
625 |
av_freep(&h->cbp_table); |
626 |
av_freep(&h->mvd_table[0]);
|
627 |
av_freep(&h->mvd_table[1]);
|
628 |
av_freep(&h->direct_table); |
629 |
av_freep(&h->non_zero_count); |
630 |
av_freep(&h->slice_table_base); |
631 |
h->slice_table= NULL;
|
632 |
av_freep(&h->list_counts); |
633 |
|
634 |
av_freep(&h->mb2b_xy); |
635 |
av_freep(&h->mb2br_xy); |
636 |
|
637 |
for(i = 0; i < MAX_THREADS; i++) { |
638 |
hx = h->thread_context[i]; |
639 |
if(!hx) continue; |
640 |
av_freep(&hx->top_borders[1]);
|
641 |
av_freep(&hx->top_borders[0]);
|
642 |
av_freep(&hx->s.obmc_scratchpad); |
643 |
if (free_rbsp){
|
644 |
av_freep(&hx->rbsp_buffer[1]);
|
645 |
av_freep(&hx->rbsp_buffer[0]);
|
646 |
hx->rbsp_buffer_size[0] = 0; |
647 |
hx->rbsp_buffer_size[1] = 0; |
648 |
} |
649 |
if (i) av_freep(&h->thread_context[i]);
|
650 |
} |
651 |
} |
652 |
|
653 |
static void init_dequant8_coeff_table(H264Context *h){ |
654 |
int i,q,x;
|
655 |
h->dequant8_coeff[0] = h->dequant8_buffer[0]; |
656 |
h->dequant8_coeff[1] = h->dequant8_buffer[1]; |
657 |
|
658 |
for(i=0; i<2; i++ ){ |
659 |
if(i && !memcmp(h->pps.scaling_matrix8[0], h->pps.scaling_matrix8[1], 64*sizeof(uint8_t))){ |
660 |
h->dequant8_coeff[1] = h->dequant8_buffer[0]; |
661 |
break;
|
662 |
} |
663 |
|
664 |
for(q=0; q<52; q++){ |
665 |
int shift = div6[q];
|
666 |
int idx = rem6[q];
|
667 |
for(x=0; x<64; x++) |
668 |
h->dequant8_coeff[i][q][(x>>3)|((x&7)<<3)] = |
669 |
((uint32_t)dequant8_coeff_init[idx][ dequant8_coeff_init_scan[((x>>1)&12) | (x&3)] ] * |
670 |
h->pps.scaling_matrix8[i][x]) << shift; |
671 |
} |
672 |
} |
673 |
} |
674 |
|
675 |
static void init_dequant4_coeff_table(H264Context *h){ |
676 |
int i,j,q,x;
|
677 |
for(i=0; i<6; i++ ){ |
678 |
h->dequant4_coeff[i] = h->dequant4_buffer[i]; |
679 |
for(j=0; j<i; j++){ |
680 |
if(!memcmp(h->pps.scaling_matrix4[j], h->pps.scaling_matrix4[i], 16*sizeof(uint8_t))){ |
681 |
h->dequant4_coeff[i] = h->dequant4_buffer[j]; |
682 |
break;
|
683 |
} |
684 |
} |
685 |
if(j<i)
|
686 |
continue;
|
687 |
|
688 |
for(q=0; q<52; q++){ |
689 |
int shift = div6[q] + 2; |
690 |
int idx = rem6[q];
|
691 |
for(x=0; x<16; x++) |
692 |
h->dequant4_coeff[i][q][(x>>2)|((x<<2)&0xF)] = |
693 |
((uint32_t)dequant4_coeff_init[idx][(x&1) + ((x>>2)&1)] * |
694 |
h->pps.scaling_matrix4[i][x]) << shift; |
695 |
} |
696 |
} |
697 |
} |
698 |
|
699 |
static void init_dequant_tables(H264Context *h){ |
700 |
int i,x;
|
701 |
init_dequant4_coeff_table(h); |
702 |
if(h->pps.transform_8x8_mode)
|
703 |
init_dequant8_coeff_table(h); |
704 |
if(h->sps.transform_bypass){
|
705 |
for(i=0; i<6; i++) |
706 |
for(x=0; x<16; x++) |
707 |
h->dequant4_coeff[i][0][x] = 1<<6; |
708 |
if(h->pps.transform_8x8_mode)
|
709 |
for(i=0; i<2; i++) |
710 |
for(x=0; x<64; x++) |
711 |
h->dequant8_coeff[i][0][x] = 1<<6; |
712 |
} |
713 |
} |
714 |
|
715 |
|
716 |
int ff_h264_alloc_tables(H264Context *h){
|
717 |
MpegEncContext * const s = &h->s;
|
718 |
const int big_mb_num= s->mb_stride * (s->mb_height+1); |
719 |
const int row_mb_num= 2*s->mb_stride*s->avctx->thread_count; |
720 |
int x,y;
|
721 |
|
722 |
FF_ALLOCZ_OR_GOTO(h->s.avctx, h->intra4x4_pred_mode, row_mb_num * 8 * sizeof(uint8_t), fail) |
723 |
|
724 |
FF_ALLOCZ_OR_GOTO(h->s.avctx, h->non_zero_count , big_mb_num * 32 * sizeof(uint8_t), fail) |
725 |
FF_ALLOCZ_OR_GOTO(h->s.avctx, h->slice_table_base , (big_mb_num+s->mb_stride) * sizeof(*h->slice_table_base), fail)
|
726 |
FF_ALLOCZ_OR_GOTO(h->s.avctx, h->cbp_table, big_mb_num * sizeof(uint16_t), fail)
|
727 |
|
728 |
FF_ALLOCZ_OR_GOTO(h->s.avctx, h->chroma_pred_mode_table, big_mb_num * sizeof(uint8_t), fail)
|
729 |
FF_ALLOCZ_OR_GOTO(h->s.avctx, h->mvd_table[0], 16*row_mb_num * sizeof(uint8_t), fail); |
730 |
FF_ALLOCZ_OR_GOTO(h->s.avctx, h->mvd_table[1], 16*row_mb_num * sizeof(uint8_t), fail); |
731 |
FF_ALLOCZ_OR_GOTO(h->s.avctx, h->direct_table, 4*big_mb_num * sizeof(uint8_t) , fail); |
732 |
FF_ALLOCZ_OR_GOTO(h->s.avctx, h->list_counts, big_mb_num * sizeof(uint8_t), fail)
|
733 |
|
734 |
memset(h->slice_table_base, -1, (big_mb_num+s->mb_stride) * sizeof(*h->slice_table_base)); |
735 |
h->slice_table= h->slice_table_base + s->mb_stride*2 + 1; |
736 |
|
737 |
FF_ALLOCZ_OR_GOTO(h->s.avctx, h->mb2b_xy , big_mb_num * sizeof(uint32_t), fail);
|
738 |
FF_ALLOCZ_OR_GOTO(h->s.avctx, h->mb2br_xy , big_mb_num * sizeof(uint32_t), fail);
|
739 |
for(y=0; y<s->mb_height; y++){ |
740 |
for(x=0; x<s->mb_width; x++){ |
741 |
const int mb_xy= x + y*s->mb_stride; |
742 |
const int b_xy = 4*x + 4*y*h->b_stride; |
743 |
|
744 |
h->mb2b_xy [mb_xy]= b_xy; |
745 |
h->mb2br_xy[mb_xy]= 8*(FMO ? mb_xy : (mb_xy % (2*s->mb_stride))); |
746 |
} |
747 |
} |
748 |
|
749 |
s->obmc_scratchpad = NULL;
|
750 |
|
751 |
if(!h->dequant4_coeff[0]) |
752 |
init_dequant_tables(h); |
753 |
|
754 |
return 0; |
755 |
fail:
|
756 |
free_tables(h, 1);
|
757 |
return -1; |
758 |
} |
759 |
|
760 |
/**
|
761 |
* Mimic alloc_tables(), but for every context thread.
|
762 |
*/
|
763 |
static void clone_tables(H264Context *dst, H264Context *src, int i){ |
764 |
MpegEncContext * const s = &src->s;
|
765 |
dst->intra4x4_pred_mode = src->intra4x4_pred_mode + i*8*2*s->mb_stride; |
766 |
dst->non_zero_count = src->non_zero_count; |
767 |
dst->slice_table = src->slice_table; |
768 |
dst->cbp_table = src->cbp_table; |
769 |
dst->mb2b_xy = src->mb2b_xy; |
770 |
dst->mb2br_xy = src->mb2br_xy; |
771 |
dst->chroma_pred_mode_table = src->chroma_pred_mode_table; |
772 |
dst->mvd_table[0] = src->mvd_table[0] + i*8*2*s->mb_stride; |
773 |
dst->mvd_table[1] = src->mvd_table[1] + i*8*2*s->mb_stride; |
774 |
dst->direct_table = src->direct_table; |
775 |
dst->list_counts = src->list_counts; |
776 |
|
777 |
dst->s.obmc_scratchpad = NULL;
|
778 |
ff_h264_pred_init(&dst->hpc, src->s.codec_id); |
779 |
} |
780 |
|
781 |
/**
|
782 |
* Init context
|
783 |
* Allocate buffers which are not shared amongst multiple threads.
|
784 |
*/
|
785 |
static int context_init(H264Context *h){ |
786 |
FF_ALLOCZ_OR_GOTO(h->s.avctx, h->top_borders[0], h->s.mb_width * (16+8+8) * sizeof(uint8_t), fail) |
787 |
FF_ALLOCZ_OR_GOTO(h->s.avctx, h->top_borders[1], h->s.mb_width * (16+8+8) * sizeof(uint8_t), fail) |
788 |
|
789 |
h->ref_cache[0][scan8[5 ]+1] = h->ref_cache[0][scan8[7 ]+1] = h->ref_cache[0][scan8[13]+1] = |
790 |
h->ref_cache[1][scan8[5 ]+1] = h->ref_cache[1][scan8[7 ]+1] = h->ref_cache[1][scan8[13]+1] = PART_NOT_AVAILABLE; |
791 |
|
792 |
return 0; |
793 |
fail:
|
794 |
return -1; // free_tables will clean up for us |
795 |
} |
796 |
|
797 |
static int decode_nal_units(H264Context *h, const uint8_t *buf, int buf_size); |
798 |
|
799 |
static av_cold void common_init(H264Context *h){ |
800 |
MpegEncContext * const s = &h->s;
|
801 |
|
802 |
s->width = s->avctx->width; |
803 |
s->height = s->avctx->height; |
804 |
s->codec_id= s->avctx->codec->id; |
805 |
|
806 |
ff_h264dsp_init(&h->h264dsp); |
807 |
ff_h264_pred_init(&h->hpc, s->codec_id); |
808 |
|
809 |
h->dequant_coeff_pps= -1;
|
810 |
s->unrestricted_mv=1;
|
811 |
s->decode=1; //FIXME |
812 |
|
813 |
dsputil_init(&s->dsp, s->avctx); // needed so that idct permutation is known early
|
814 |
|
815 |
memset(h->pps.scaling_matrix4, 16, 6*16*sizeof(uint8_t)); |
816 |
memset(h->pps.scaling_matrix8, 16, 2*64*sizeof(uint8_t)); |
817 |
} |
818 |
|
819 |
int ff_h264_decode_extradata(H264Context *h)
|
820 |
{ |
821 |
AVCodecContext *avctx = h->s.avctx; |
822 |
|
823 |
if(*(char *)avctx->extradata == 1){ |
824 |
int i, cnt, nalsize;
|
825 |
unsigned char *p = avctx->extradata; |
826 |
|
827 |
h->is_avc = 1;
|
828 |
|
829 |
if(avctx->extradata_size < 7) { |
830 |
av_log(avctx, AV_LOG_ERROR, "avcC too short\n");
|
831 |
return -1; |
832 |
} |
833 |
/* sps and pps in the avcC always have length coded with 2 bytes,
|
834 |
so put a fake nal_length_size = 2 while parsing them */
|
835 |
h->nal_length_size = 2;
|
836 |
// Decode sps from avcC
|
837 |
cnt = *(p+5) & 0x1f; // Number of sps |
838 |
p += 6;
|
839 |
for (i = 0; i < cnt; i++) { |
840 |
nalsize = AV_RB16(p) + 2;
|
841 |
if(decode_nal_units(h, p, nalsize) < 0) { |
842 |
av_log(avctx, AV_LOG_ERROR, "Decoding sps %d from avcC failed\n", i);
|
843 |
return -1; |
844 |
} |
845 |
p += nalsize; |
846 |
} |
847 |
// Decode pps from avcC
|
848 |
cnt = *(p++); // Number of pps
|
849 |
for (i = 0; i < cnt; i++) { |
850 |
nalsize = AV_RB16(p) + 2;
|
851 |
if(decode_nal_units(h, p, nalsize) != nalsize) {
|
852 |
av_log(avctx, AV_LOG_ERROR, "Decoding pps %d from avcC failed\n", i);
|
853 |
return -1; |
854 |
} |
855 |
p += nalsize; |
856 |
} |
857 |
// Now store right nal length size, that will be use to parse all other nals
|
858 |
h->nal_length_size = ((*(((char*)(avctx->extradata))+4))&0x03)+1; |
859 |
} else {
|
860 |
h->is_avc = 0;
|
861 |
if(decode_nal_units(h, avctx->extradata, avctx->extradata_size) < 0) |
862 |
return -1; |
863 |
} |
864 |
return 0; |
865 |
} |
866 |
|
867 |
av_cold int ff_h264_decode_init(AVCodecContext *avctx){
|
868 |
H264Context *h= avctx->priv_data; |
869 |
MpegEncContext * const s = &h->s;
|
870 |
|
871 |
MPV_decode_defaults(s); |
872 |
|
873 |
s->avctx = avctx; |
874 |
common_init(h); |
875 |
|
876 |
s->out_format = FMT_H264; |
877 |
s->workaround_bugs= avctx->workaround_bugs; |
878 |
|
879 |
// set defaults
|
880 |
// s->decode_mb= ff_h263_decode_mb;
|
881 |
s->quarter_sample = 1;
|
882 |
if(!avctx->has_b_frames)
|
883 |
s->low_delay= 1;
|
884 |
|
885 |
avctx->chroma_sample_location = AVCHROMA_LOC_LEFT; |
886 |
|
887 |
ff_h264_decode_init_vlc(); |
888 |
|
889 |
h->thread_context[0] = h;
|
890 |
h->outputed_poc = INT_MIN; |
891 |
h->prev_poc_msb= 1<<16; |
892 |
h->x264_build = -1;
|
893 |
ff_h264_reset_sei(h); |
894 |
if(avctx->codec_id == CODEC_ID_H264){
|
895 |
if(avctx->ticks_per_frame == 1){ |
896 |
s->avctx->time_base.den *=2;
|
897 |
} |
898 |
avctx->ticks_per_frame = 2;
|
899 |
} |
900 |
|
901 |
if(avctx->extradata_size > 0 && avctx->extradata && |
902 |
ff_h264_decode_extradata(h)) |
903 |
return -1; |
904 |
|
905 |
if(h->sps.bitstream_restriction_flag && s->avctx->has_b_frames < h->sps.num_reorder_frames){
|
906 |
s->avctx->has_b_frames = h->sps.num_reorder_frames; |
907 |
s->low_delay = 0;
|
908 |
} |
909 |
|
910 |
return 0; |
911 |
} |
912 |
|
913 |
int ff_h264_frame_start(H264Context *h){
|
914 |
MpegEncContext * const s = &h->s;
|
915 |
int i;
|
916 |
|
917 |
if(MPV_frame_start(s, s->avctx) < 0) |
918 |
return -1; |
919 |
ff_er_frame_start(s); |
920 |
/*
|
921 |
* MPV_frame_start uses pict_type to derive key_frame.
|
922 |
* This is incorrect for H.264; IDR markings must be used.
|
923 |
* Zero here; IDR markings per slice in frame or fields are ORed in later.
|
924 |
* See decode_nal_units().
|
925 |
*/
|
926 |
s->current_picture_ptr->key_frame= 0;
|
927 |
s->current_picture_ptr->mmco_reset= 0;
|
928 |
|
929 |
assert(s->linesize && s->uvlinesize); |
930 |
|
931 |
for(i=0; i<16; i++){ |
932 |
h->block_offset[i]= 4*((scan8[i] - scan8[0])&7) + 4*s->linesize*((scan8[i] - scan8[0])>>3); |
933 |
h->block_offset[24+i]= 4*((scan8[i] - scan8[0])&7) + 8*s->linesize*((scan8[i] - scan8[0])>>3); |
934 |
} |
935 |
for(i=0; i<4; i++){ |
936 |
h->block_offset[16+i]=
|
937 |
h->block_offset[20+i]= 4*((scan8[i] - scan8[0])&7) + 4*s->uvlinesize*((scan8[i] - scan8[0])>>3); |
938 |
h->block_offset[24+16+i]= |
939 |
h->block_offset[24+20+i]= 4*((scan8[i] - scan8[0])&7) + 8*s->uvlinesize*((scan8[i] - scan8[0])>>3); |
940 |
} |
941 |
|
942 |
/* can't be in alloc_tables because linesize isn't known there.
|
943 |
* FIXME: redo bipred weight to not require extra buffer? */
|
944 |
for(i = 0; i < s->avctx->thread_count; i++) |
945 |
if(h->thread_context[i] && !h->thread_context[i]->s.obmc_scratchpad)
|
946 |
h->thread_context[i]->s.obmc_scratchpad = av_malloc(16*2*s->linesize + 8*2*s->uvlinesize); |
947 |
|
948 |
/* some macroblocks can be accessed before they're available in case of lost slices, mbaff or threading*/
|
949 |
memset(h->slice_table, -1, (s->mb_height*s->mb_stride-1) * sizeof(*h->slice_table)); |
950 |
|
951 |
// s->decode= (s->flags&CODEC_FLAG_PSNR) || !s->encoding || s->current_picture.reference /*|| h->contains_intra*/ || 1;
|
952 |
|
953 |
// We mark the current picture as non-reference after allocating it, so
|
954 |
// that if we break out due to an error it can be released automatically
|
955 |
// in the next MPV_frame_start().
|
956 |
// SVQ3 as well as most other codecs have only last/next/current and thus
|
957 |
// get released even with set reference, besides SVQ3 and others do not
|
958 |
// mark frames as reference later "naturally".
|
959 |
if(s->codec_id != CODEC_ID_SVQ3)
|
960 |
s->current_picture_ptr->reference= 0;
|
961 |
|
962 |
s->current_picture_ptr->field_poc[0]=
|
963 |
s->current_picture_ptr->field_poc[1]= INT_MAX;
|
964 |
assert(s->current_picture_ptr->long_ref==0);
|
965 |
|
966 |
return 0; |
967 |
} |
968 |
|
969 |
static inline void backup_mb_border(H264Context *h, uint8_t *src_y, uint8_t *src_cb, uint8_t *src_cr, int linesize, int uvlinesize, int simple){ |
970 |
MpegEncContext * const s = &h->s;
|
971 |
uint8_t *top_border; |
972 |
int top_idx = 1; |
973 |
|
974 |
src_y -= linesize; |
975 |
src_cb -= uvlinesize; |
976 |
src_cr -= uvlinesize; |
977 |
|
978 |
if(!simple && FRAME_MBAFF){
|
979 |
if(s->mb_y&1){ |
980 |
if(!MB_MBAFF){
|
981 |
top_border = h->top_borders[0][s->mb_x];
|
982 |
AV_COPY128(top_border, src_y + 15*linesize);
|
983 |
if(simple || !CONFIG_GRAY || !(s->flags&CODEC_FLAG_GRAY)){
|
984 |
AV_COPY64(top_border+16, src_cb+7*uvlinesize); |
985 |
AV_COPY64(top_border+24, src_cr+7*uvlinesize); |
986 |
} |
987 |
} |
988 |
}else if(MB_MBAFF){ |
989 |
top_idx = 0;
|
990 |
}else
|
991 |
return;
|
992 |
} |
993 |
|
994 |
top_border = h->top_borders[top_idx][s->mb_x]; |
995 |
// There are two lines saved, the line above the the top macroblock of a pair,
|
996 |
// and the line above the bottom macroblock
|
997 |
AV_COPY128(top_border, src_y + 16*linesize);
|
998 |
|
999 |
if(simple || !CONFIG_GRAY || !(s->flags&CODEC_FLAG_GRAY)){
|
1000 |
AV_COPY64(top_border+16, src_cb+8*uvlinesize); |
1001 |
AV_COPY64(top_border+24, src_cr+8*uvlinesize); |
1002 |
} |
1003 |
} |
1004 |
|
1005 |
static inline void xchg_mb_border(H264Context *h, uint8_t *src_y, uint8_t *src_cb, uint8_t *src_cr, int linesize, int uvlinesize, int xchg, int simple){ |
1006 |
MpegEncContext * const s = &h->s;
|
1007 |
int deblock_left;
|
1008 |
int deblock_top;
|
1009 |
int top_idx = 1; |
1010 |
uint8_t *top_border_m1; |
1011 |
uint8_t *top_border; |
1012 |
|
1013 |
if(!simple && FRAME_MBAFF){
|
1014 |
if(s->mb_y&1){ |
1015 |
if(!MB_MBAFF)
|
1016 |
return;
|
1017 |
}else{
|
1018 |
top_idx = MB_MBAFF ? 0 : 1; |
1019 |
} |
1020 |
} |
1021 |
|
1022 |
if(h->deblocking_filter == 2) { |
1023 |
deblock_left = h->left_type[0];
|
1024 |
deblock_top = h->top_type; |
1025 |
} else {
|
1026 |
deblock_left = (s->mb_x > 0);
|
1027 |
deblock_top = (s->mb_y > !!MB_FIELD); |
1028 |
} |
1029 |
|
1030 |
src_y -= linesize + 1;
|
1031 |
src_cb -= uvlinesize + 1;
|
1032 |
src_cr -= uvlinesize + 1;
|
1033 |
|
1034 |
top_border_m1 = h->top_borders[top_idx][s->mb_x-1];
|
1035 |
top_border = h->top_borders[top_idx][s->mb_x]; |
1036 |
|
1037 |
#define XCHG(a,b,xchg)\
|
1038 |
if (xchg) AV_SWAP64(b,a);\
|
1039 |
else AV_COPY64(b,a);
|
1040 |
|
1041 |
if(deblock_top){
|
1042 |
if(deblock_left){
|
1043 |
XCHG(top_border_m1+8, src_y -7, 1); |
1044 |
} |
1045 |
XCHG(top_border+0, src_y +1, xchg); |
1046 |
XCHG(top_border+8, src_y +9, 1); |
1047 |
if(s->mb_x+1 < s->mb_width){ |
1048 |
XCHG(h->top_borders[top_idx][s->mb_x+1], src_y +17, 1); |
1049 |
} |
1050 |
} |
1051 |
|
1052 |
if(simple || !CONFIG_GRAY || !(s->flags&CODEC_FLAG_GRAY)){
|
1053 |
if(deblock_top){
|
1054 |
if(deblock_left){
|
1055 |
XCHG(top_border_m1+16, src_cb -7, 1); |
1056 |
XCHG(top_border_m1+24, src_cr -7, 1); |
1057 |
} |
1058 |
XCHG(top_border+16, src_cb+1, 1); |
1059 |
XCHG(top_border+24, src_cr+1, 1); |
1060 |
} |
1061 |
} |
1062 |
} |
1063 |
|
1064 |
static av_always_inline void hl_decode_mb_internal(H264Context *h, int simple){ |
1065 |
MpegEncContext * const s = &h->s;
|
1066 |
const int mb_x= s->mb_x; |
1067 |
const int mb_y= s->mb_y; |
1068 |
const int mb_xy= h->mb_xy; |
1069 |
const int mb_type= s->current_picture.mb_type[mb_xy]; |
1070 |
uint8_t *dest_y, *dest_cb, *dest_cr; |
1071 |
int linesize, uvlinesize /*dct_offset*/; |
1072 |
int i;
|
1073 |
int *block_offset = &h->block_offset[0]; |
1074 |
const int transform_bypass = !simple && (s->qscale == 0 && h->sps.transform_bypass); |
1075 |
/* is_h264 should always be true if SVQ3 is disabled. */
|
1076 |
const int is_h264 = !CONFIG_SVQ3_DECODER || simple || s->codec_id == CODEC_ID_H264; |
1077 |
void (*idct_add)(uint8_t *dst, DCTELEM *block, int stride); |
1078 |
void (*idct_dc_add)(uint8_t *dst, DCTELEM *block, int stride); |
1079 |
|
1080 |
dest_y = s->current_picture.data[0] + (mb_x + mb_y * s->linesize ) * 16; |
1081 |
dest_cb = s->current_picture.data[1] + (mb_x + mb_y * s->uvlinesize) * 8; |
1082 |
dest_cr = s->current_picture.data[2] + (mb_x + mb_y * s->uvlinesize) * 8; |
1083 |
|
1084 |
s->dsp.prefetch(dest_y + (s->mb_x&3)*4*s->linesize + 64, s->linesize, 4); |
1085 |
s->dsp.prefetch(dest_cb + (s->mb_x&7)*s->uvlinesize + 64, dest_cr - dest_cb, 2); |
1086 |
|
1087 |
h->list_counts[mb_xy]= h->list_count; |
1088 |
|
1089 |
if (!simple && MB_FIELD) {
|
1090 |
linesize = h->mb_linesize = s->linesize * 2;
|
1091 |
uvlinesize = h->mb_uvlinesize = s->uvlinesize * 2;
|
1092 |
block_offset = &h->block_offset[24];
|
1093 |
if(mb_y&1){ //FIXME move out of this function? |
1094 |
dest_y -= s->linesize*15;
|
1095 |
dest_cb-= s->uvlinesize*7;
|
1096 |
dest_cr-= s->uvlinesize*7;
|
1097 |
} |
1098 |
if(FRAME_MBAFF) {
|
1099 |
int list;
|
1100 |
for(list=0; list<h->list_count; list++){ |
1101 |
if(!USES_LIST(mb_type, list))
|
1102 |
continue;
|
1103 |
if(IS_16X16(mb_type)){
|
1104 |
int8_t *ref = &h->ref_cache[list][scan8[0]];
|
1105 |
fill_rectangle(ref, 4, 4, 8, (16+*ref)^(s->mb_y&1), 1); |
1106 |
}else{
|
1107 |
for(i=0; i<16; i+=4){ |
1108 |
int ref = h->ref_cache[list][scan8[i]];
|
1109 |
if(ref >= 0) |
1110 |
fill_rectangle(&h->ref_cache[list][scan8[i]], 2, 2, 8, (16+ref)^(s->mb_y&1), 1); |
1111 |
} |
1112 |
} |
1113 |
} |
1114 |
} |
1115 |
} else {
|
1116 |
linesize = h->mb_linesize = s->linesize; |
1117 |
uvlinesize = h->mb_uvlinesize = s->uvlinesize; |
1118 |
// dct_offset = s->linesize * 16;
|
1119 |
} |
1120 |
|
1121 |
if (!simple && IS_INTRA_PCM(mb_type)) {
|
1122 |
for (i=0; i<16; i++) { |
1123 |
memcpy(dest_y + i* linesize, h->mb + i*8, 16); |
1124 |
} |
1125 |
for (i=0; i<8; i++) { |
1126 |
memcpy(dest_cb+ i*uvlinesize, h->mb + 128 + i*4, 8); |
1127 |
memcpy(dest_cr+ i*uvlinesize, h->mb + 160 + i*4, 8); |
1128 |
} |
1129 |
} else {
|
1130 |
if(IS_INTRA(mb_type)){
|
1131 |
if(h->deblocking_filter)
|
1132 |
xchg_mb_border(h, dest_y, dest_cb, dest_cr, linesize, uvlinesize, 1, simple);
|
1133 |
|
1134 |
if(simple || !CONFIG_GRAY || !(s->flags&CODEC_FLAG_GRAY)){
|
1135 |
h->hpc.pred8x8[ h->chroma_pred_mode ](dest_cb, uvlinesize); |
1136 |
h->hpc.pred8x8[ h->chroma_pred_mode ](dest_cr, uvlinesize); |
1137 |
} |
1138 |
|
1139 |
if(IS_INTRA4x4(mb_type)){
|
1140 |
if(simple || !s->encoding){
|
1141 |
if(IS_8x8DCT(mb_type)){
|
1142 |
if(transform_bypass){
|
1143 |
idct_dc_add = |
1144 |
idct_add = s->dsp.add_pixels8; |
1145 |
}else{
|
1146 |
idct_dc_add = h->h264dsp.h264_idct8_dc_add; |
1147 |
idct_add = h->h264dsp.h264_idct8_add; |
1148 |
} |
1149 |
for(i=0; i<16; i+=4){ |
1150 |
uint8_t * const ptr= dest_y + block_offset[i];
|
1151 |
const int dir= h->intra4x4_pred_mode_cache[ scan8[i] ]; |
1152 |
if(transform_bypass && h->sps.profile_idc==244 && dir<=1){ |
1153 |
h->hpc.pred8x8l_add[dir](ptr, h->mb + i*16, linesize);
|
1154 |
}else{
|
1155 |
const int nnz = h->non_zero_count_cache[ scan8[i] ]; |
1156 |
h->hpc.pred8x8l[ dir ](ptr, (h->topleft_samples_available<<i)&0x8000,
|
1157 |
(h->topright_samples_available<<i)&0x4000, linesize);
|
1158 |
if(nnz){
|
1159 |
if(nnz == 1 && h->mb[i*16]) |
1160 |
idct_dc_add(ptr, h->mb + i*16, linesize);
|
1161 |
else
|
1162 |
idct_add (ptr, h->mb + i*16, linesize);
|
1163 |
} |
1164 |
} |
1165 |
} |
1166 |
}else{
|
1167 |
if(transform_bypass){
|
1168 |
idct_dc_add = |
1169 |
idct_add = s->dsp.add_pixels4; |
1170 |
}else{
|
1171 |
idct_dc_add = h->h264dsp.h264_idct_dc_add; |
1172 |
idct_add = h->h264dsp.h264_idct_add; |
1173 |
} |
1174 |
for(i=0; i<16; i++){ |
1175 |
uint8_t * const ptr= dest_y + block_offset[i];
|
1176 |
const int dir= h->intra4x4_pred_mode_cache[ scan8[i] ]; |
1177 |
|
1178 |
if(transform_bypass && h->sps.profile_idc==244 && dir<=1){ |
1179 |
h->hpc.pred4x4_add[dir](ptr, h->mb + i*16, linesize);
|
1180 |
}else{
|
1181 |
uint8_t *topright; |
1182 |
int nnz, tr;
|
1183 |
if(dir == DIAG_DOWN_LEFT_PRED || dir == VERT_LEFT_PRED){
|
1184 |
const int topright_avail= (h->topright_samples_available<<i)&0x8000; |
1185 |
assert(mb_y || linesize <= block_offset[i]); |
1186 |
if(!topright_avail){
|
1187 |
tr= ptr[3 - linesize]*0x01010101; |
1188 |
topright= (uint8_t*) &tr; |
1189 |
}else
|
1190 |
topright= ptr + 4 - linesize;
|
1191 |
}else
|
1192 |
topright= NULL;
|
1193 |
|
1194 |
h->hpc.pred4x4[ dir ](ptr, topright, linesize); |
1195 |
nnz = h->non_zero_count_cache[ scan8[i] ]; |
1196 |
if(nnz){
|
1197 |
if(is_h264){
|
1198 |
if(nnz == 1 && h->mb[i*16]) |
1199 |
idct_dc_add(ptr, h->mb + i*16, linesize);
|
1200 |
else
|
1201 |
idct_add (ptr, h->mb + i*16, linesize);
|
1202 |
}else
|
1203 |
ff_svq3_add_idct_c(ptr, h->mb + i*16, linesize, s->qscale, 0); |
1204 |
} |
1205 |
} |
1206 |
} |
1207 |
} |
1208 |
} |
1209 |
}else{
|
1210 |
h->hpc.pred16x16[ h->intra16x16_pred_mode ](dest_y , linesize); |
1211 |
if(is_h264){
|
1212 |
if(h->non_zero_count_cache[ scan8[LUMA_DC_BLOCK_INDEX] ]){
|
1213 |
if(!transform_bypass)
|
1214 |
h->h264dsp.h264_luma_dc_dequant_idct(h->mb, h->mb_luma_dc, h->dequant4_coeff[0][s->qscale][0]); |
1215 |
else{
|
1216 |
static const uint8_t dc_mapping[16] = { 0*16, 1*16, 4*16, 5*16, 2*16, 3*16, 6*16, 7*16, |
1217 |
8*16, 9*16,12*16,13*16,10*16,11*16,14*16,15*16}; |
1218 |
for(i = 0; i < 16; i++) |
1219 |
h->mb[dc_mapping[i]] = h->mb_luma_dc[i]; |
1220 |
} |
1221 |
} |
1222 |
}else
|
1223 |
ff_svq3_luma_dc_dequant_idct_c(h->mb, h->mb_luma_dc, s->qscale); |
1224 |
} |
1225 |
if(h->deblocking_filter)
|
1226 |
xchg_mb_border(h, dest_y, dest_cb, dest_cr, linesize, uvlinesize, 0, simple);
|
1227 |
}else if(is_h264){ |
1228 |
hl_motion(h, dest_y, dest_cb, dest_cr, |
1229 |
s->me.qpel_put, s->dsp.put_h264_chroma_pixels_tab, |
1230 |
s->me.qpel_avg, s->dsp.avg_h264_chroma_pixels_tab, |
1231 |
h->h264dsp.weight_h264_pixels_tab, h->h264dsp.biweight_h264_pixels_tab); |
1232 |
} |
1233 |
|
1234 |
|
1235 |
if(!IS_INTRA4x4(mb_type)){
|
1236 |
if(is_h264){
|
1237 |
if(IS_INTRA16x16(mb_type)){
|
1238 |
if(transform_bypass){
|
1239 |
if(h->sps.profile_idc==244 && (h->intra16x16_pred_mode==VERT_PRED8x8 || h->intra16x16_pred_mode==HOR_PRED8x8)){ |
1240 |
h->hpc.pred16x16_add[h->intra16x16_pred_mode](dest_y, block_offset, h->mb, linesize); |
1241 |
}else{
|
1242 |
for(i=0; i<16; i++){ |
1243 |
if(h->non_zero_count_cache[ scan8[i] ] || h->mb[i*16]) |
1244 |
s->dsp.add_pixels4(dest_y + block_offset[i], h->mb + i*16, linesize);
|
1245 |
} |
1246 |
} |
1247 |
}else{
|
1248 |
h->h264dsp.h264_idct_add16intra(dest_y, block_offset, h->mb, linesize, h->non_zero_count_cache); |
1249 |
} |
1250 |
}else if(h->cbp&15){ |
1251 |
if(transform_bypass){
|
1252 |
const int di = IS_8x8DCT(mb_type) ? 4 : 1; |
1253 |
idct_add= IS_8x8DCT(mb_type) ? s->dsp.add_pixels8 : s->dsp.add_pixels4; |
1254 |
for(i=0; i<16; i+=di){ |
1255 |
if(h->non_zero_count_cache[ scan8[i] ]){
|
1256 |
idct_add(dest_y + block_offset[i], h->mb + i*16, linesize);
|
1257 |
} |
1258 |
} |
1259 |
}else{
|
1260 |
if(IS_8x8DCT(mb_type)){
|
1261 |
h->h264dsp.h264_idct8_add4(dest_y, block_offset, h->mb, linesize, h->non_zero_count_cache); |
1262 |
}else{
|
1263 |
h->h264dsp.h264_idct_add16(dest_y, block_offset, h->mb, linesize, h->non_zero_count_cache); |
1264 |
} |
1265 |
} |
1266 |
} |
1267 |
}else{
|
1268 |
for(i=0; i<16; i++){ |
1269 |
if(h->non_zero_count_cache[ scan8[i] ] || h->mb[i*16]){ //FIXME benchmark weird rule, & below |
1270 |
uint8_t * const ptr= dest_y + block_offset[i];
|
1271 |
ff_svq3_add_idct_c(ptr, h->mb + i*16, linesize, s->qscale, IS_INTRA(mb_type) ? 1 : 0); |
1272 |
} |
1273 |
} |
1274 |
} |
1275 |
} |
1276 |
|
1277 |
if((simple || !CONFIG_GRAY || !(s->flags&CODEC_FLAG_GRAY)) && (h->cbp&0x30)){ |
1278 |
uint8_t *dest[2] = {dest_cb, dest_cr};
|
1279 |
if(transform_bypass){
|
1280 |
if(IS_INTRA(mb_type) && h->sps.profile_idc==244 && (h->chroma_pred_mode==VERT_PRED8x8 || h->chroma_pred_mode==HOR_PRED8x8)){ |
1281 |
h->hpc.pred8x8_add[h->chroma_pred_mode](dest[0], block_offset + 16, h->mb + 16*16, uvlinesize); |
1282 |
h->hpc.pred8x8_add[h->chroma_pred_mode](dest[1], block_offset + 20, h->mb + 20*16, uvlinesize); |
1283 |
}else{
|
1284 |
idct_add = s->dsp.add_pixels4; |
1285 |
for(i=16; i<16+8; i++){ |
1286 |
if(h->non_zero_count_cache[ scan8[i] ] || h->mb[i*16]) |
1287 |
idct_add (dest[(i&4)>>2] + block_offset[i], h->mb + i*16, uvlinesize); |
1288 |
} |
1289 |
} |
1290 |
}else{
|
1291 |
if(is_h264){
|
1292 |
if(h->non_zero_count_cache[ scan8[CHROMA_DC_BLOCK_INDEX+0] ]) |
1293 |
chroma_dc_dequant_idct_c(h->mb + 16*16 , h->dequant4_coeff[IS_INTRA(mb_type) ? 1:4][h->chroma_qp[0]][0]); |
1294 |
if(h->non_zero_count_cache[ scan8[CHROMA_DC_BLOCK_INDEX+1] ]) |
1295 |
chroma_dc_dequant_idct_c(h->mb + 16*16+4*16, h->dequant4_coeff[IS_INTRA(mb_type) ? 2:5][h->chroma_qp[1]][0]); |
1296 |
h->h264dsp.h264_idct_add8(dest, block_offset, |
1297 |
h->mb, uvlinesize, |
1298 |
h->non_zero_count_cache); |
1299 |
}else{
|
1300 |
chroma_dc_dequant_idct_c(h->mb + 16*16 , h->dequant4_coeff[IS_INTRA(mb_type) ? 1:4][h->chroma_qp[0]][0]); |
1301 |
chroma_dc_dequant_idct_c(h->mb + 16*16+4*16, h->dequant4_coeff[IS_INTRA(mb_type) ? 2:5][h->chroma_qp[1]][0]); |
1302 |
for(i=16; i<16+8; i++){ |
1303 |
if(h->non_zero_count_cache[ scan8[i] ] || h->mb[i*16]){ |
1304 |
uint8_t * const ptr= dest[(i&4)>>2] + block_offset[i]; |
1305 |
ff_svq3_add_idct_c(ptr, h->mb + i*16, uvlinesize, ff_h264_chroma_qp[s->qscale + 12] - 12, 2); |
1306 |
} |
1307 |
} |
1308 |
} |
1309 |
} |
1310 |
} |
1311 |
} |
1312 |
if(h->cbp || IS_INTRA(mb_type))
|
1313 |
s->dsp.clear_blocks(h->mb); |
1314 |
} |
1315 |
|
1316 |
/**
|
1317 |
* Process a macroblock; this case avoids checks for expensive uncommon cases.
|
1318 |
*/
|
1319 |
static void hl_decode_mb_simple(H264Context *h){ |
1320 |
hl_decode_mb_internal(h, 1);
|
1321 |
} |
1322 |
|
1323 |
/**
|
1324 |
* Process a macroblock; this handles edge cases, such as interlacing.
|
1325 |
*/
|
1326 |
static void av_noinline hl_decode_mb_complex(H264Context *h){ |
1327 |
hl_decode_mb_internal(h, 0);
|
1328 |
} |
1329 |
|
1330 |
void ff_h264_hl_decode_mb(H264Context *h){
|
1331 |
MpegEncContext * const s = &h->s;
|
1332 |
const int mb_xy= h->mb_xy; |
1333 |
const int mb_type= s->current_picture.mb_type[mb_xy]; |
1334 |
int is_complex = CONFIG_SMALL || h->is_complex || IS_INTRA_PCM(mb_type) || s->qscale == 0; |
1335 |
|
1336 |
if (is_complex)
|
1337 |
hl_decode_mb_complex(h); |
1338 |
else hl_decode_mb_simple(h);
|
1339 |
} |
1340 |
|
1341 |
static int pred_weight_table(H264Context *h){ |
1342 |
MpegEncContext * const s = &h->s;
|
1343 |
int list, i;
|
1344 |
int luma_def, chroma_def;
|
1345 |
|
1346 |
h->use_weight= 0;
|
1347 |
h->use_weight_chroma= 0;
|
1348 |
h->luma_log2_weight_denom= get_ue_golomb(&s->gb); |
1349 |
if(CHROMA)
|
1350 |
h->chroma_log2_weight_denom= get_ue_golomb(&s->gb); |
1351 |
luma_def = 1<<h->luma_log2_weight_denom;
|
1352 |
chroma_def = 1<<h->chroma_log2_weight_denom;
|
1353 |
|
1354 |
for(list=0; list<2; list++){ |
1355 |
h->luma_weight_flag[list] = 0;
|
1356 |
h->chroma_weight_flag[list] = 0;
|
1357 |
for(i=0; i<h->ref_count[list]; i++){ |
1358 |
int luma_weight_flag, chroma_weight_flag;
|
1359 |
|
1360 |
luma_weight_flag= get_bits1(&s->gb); |
1361 |
if(luma_weight_flag){
|
1362 |
h->luma_weight[i][list][0]= get_se_golomb(&s->gb);
|
1363 |
h->luma_weight[i][list][1]= get_se_golomb(&s->gb);
|
1364 |
if( h->luma_weight[i][list][0] != luma_def |
1365 |
|| h->luma_weight[i][list][1] != 0) { |
1366 |
h->use_weight= 1;
|
1367 |
h->luma_weight_flag[list]= 1;
|
1368 |
} |
1369 |
}else{
|
1370 |
h->luma_weight[i][list][0]= luma_def;
|
1371 |
h->luma_weight[i][list][1]= 0; |
1372 |
} |
1373 |
|
1374 |
if(CHROMA){
|
1375 |
chroma_weight_flag= get_bits1(&s->gb); |
1376 |
if(chroma_weight_flag){
|
1377 |
int j;
|
1378 |
for(j=0; j<2; j++){ |
1379 |
h->chroma_weight[i][list][j][0]= get_se_golomb(&s->gb);
|
1380 |
h->chroma_weight[i][list][j][1]= get_se_golomb(&s->gb);
|
1381 |
if( h->chroma_weight[i][list][j][0] != chroma_def |
1382 |
|| h->chroma_weight[i][list][j][1] != 0) { |
1383 |
h->use_weight_chroma= 1;
|
1384 |
h->chroma_weight_flag[list]= 1;
|
1385 |
} |
1386 |
} |
1387 |
}else{
|
1388 |
int j;
|
1389 |
for(j=0; j<2; j++){ |
1390 |
h->chroma_weight[i][list][j][0]= chroma_def;
|
1391 |
h->chroma_weight[i][list][j][1]= 0; |
1392 |
} |
1393 |
} |
1394 |
} |
1395 |
} |
1396 |
if(h->slice_type_nos != FF_B_TYPE) break; |
1397 |
} |
1398 |
h->use_weight= h->use_weight || h->use_weight_chroma; |
1399 |
return 0; |
1400 |
} |
1401 |
|
1402 |
/**
|
1403 |
* Initialize implicit_weight table.
|
1404 |
* @param field 0/1 initialize the weight for interlaced MBAFF
|
1405 |
* -1 initializes the rest
|
1406 |
*/
|
1407 |
static void implicit_weight_table(H264Context *h, int field){ |
1408 |
MpegEncContext * const s = &h->s;
|
1409 |
int ref0, ref1, i, cur_poc, ref_start, ref_count0, ref_count1;
|
1410 |
|
1411 |
for (i = 0; i < 2; i++) { |
1412 |
h->luma_weight_flag[i] = 0;
|
1413 |
h->chroma_weight_flag[i] = 0;
|
1414 |
} |
1415 |
|
1416 |
if(field < 0){ |
1417 |
cur_poc = s->current_picture_ptr->poc; |
1418 |
if( h->ref_count[0] == 1 && h->ref_count[1] == 1 && !FRAME_MBAFF |
1419 |
&& h->ref_list[0][0].poc + h->ref_list[1][0].poc == 2*cur_poc){ |
1420 |
h->use_weight= 0;
|
1421 |
h->use_weight_chroma= 0;
|
1422 |
return;
|
1423 |
} |
1424 |
ref_start= 0;
|
1425 |
ref_count0= h->ref_count[0];
|
1426 |
ref_count1= h->ref_count[1];
|
1427 |
}else{
|
1428 |
cur_poc = s->current_picture_ptr->field_poc[field]; |
1429 |
ref_start= 16;
|
1430 |
ref_count0= 16+2*h->ref_count[0]; |
1431 |
ref_count1= 16+2*h->ref_count[1]; |
1432 |
} |
1433 |
|
1434 |
h->use_weight= 2;
|
1435 |
h->use_weight_chroma= 2;
|
1436 |
h->luma_log2_weight_denom= 5;
|
1437 |
h->chroma_log2_weight_denom= 5;
|
1438 |
|
1439 |
for(ref0=ref_start; ref0 < ref_count0; ref0++){
|
1440 |
int poc0 = h->ref_list[0][ref0].poc; |
1441 |
for(ref1=ref_start; ref1 < ref_count1; ref1++){
|
1442 |
int poc1 = h->ref_list[1][ref1].poc; |
1443 |
int td = av_clip(poc1 - poc0, -128, 127); |
1444 |
int w= 32; |
1445 |
if(td){
|
1446 |
int tb = av_clip(cur_poc - poc0, -128, 127); |
1447 |
int tx = (16384 + (FFABS(td) >> 1)) / td; |
1448 |
int dist_scale_factor = (tb*tx + 32) >> 8; |
1449 |
if(dist_scale_factor >= -64 && dist_scale_factor <= 128) |
1450 |
w = 64 - dist_scale_factor;
|
1451 |
} |
1452 |
if(field<0){ |
1453 |
h->implicit_weight[ref0][ref1][0]=
|
1454 |
h->implicit_weight[ref0][ref1][1]= w;
|
1455 |
}else{
|
1456 |
h->implicit_weight[ref0][ref1][field]=w; |
1457 |
} |
1458 |
} |
1459 |
} |
1460 |
} |
1461 |
|
1462 |
/**
|
1463 |
* instantaneous decoder refresh.
|
1464 |
*/
|
1465 |
static void idr(H264Context *h){ |
1466 |
ff_h264_remove_all_refs(h); |
1467 |
h->prev_frame_num= 0;
|
1468 |
h->prev_frame_num_offset= 0;
|
1469 |
h->prev_poc_msb= |
1470 |
h->prev_poc_lsb= 0;
|
1471 |
} |
1472 |
|
1473 |
/* forget old pics after a seek */
|
1474 |
static void flush_dpb(AVCodecContext *avctx){ |
1475 |
H264Context *h= avctx->priv_data; |
1476 |
int i;
|
1477 |
for(i=0; i<MAX_DELAYED_PIC_COUNT; i++) { |
1478 |
if(h->delayed_pic[i])
|
1479 |
h->delayed_pic[i]->reference= 0;
|
1480 |
h->delayed_pic[i]= NULL;
|
1481 |
} |
1482 |
h->outputed_poc= INT_MIN; |
1483 |
h->prev_interlaced_frame = 1;
|
1484 |
idr(h); |
1485 |
if(h->s.current_picture_ptr)
|
1486 |
h->s.current_picture_ptr->reference= 0;
|
1487 |
h->s.first_field= 0;
|
1488 |
ff_h264_reset_sei(h); |
1489 |
ff_mpeg_flush(avctx); |
1490 |
} |
1491 |
|
1492 |
static int init_poc(H264Context *h){ |
1493 |
MpegEncContext * const s = &h->s;
|
1494 |
const int max_frame_num= 1<<h->sps.log2_max_frame_num; |
1495 |
int field_poc[2]; |
1496 |
Picture *cur = s->current_picture_ptr; |
1497 |
|
1498 |
h->frame_num_offset= h->prev_frame_num_offset; |
1499 |
if(h->frame_num < h->prev_frame_num)
|
1500 |
h->frame_num_offset += max_frame_num; |
1501 |
|
1502 |
if(h->sps.poc_type==0){ |
1503 |
const int max_poc_lsb= 1<<h->sps.log2_max_poc_lsb; |
1504 |
|
1505 |
if (h->poc_lsb < h->prev_poc_lsb && h->prev_poc_lsb - h->poc_lsb >= max_poc_lsb/2) |
1506 |
h->poc_msb = h->prev_poc_msb + max_poc_lsb; |
1507 |
else if(h->poc_lsb > h->prev_poc_lsb && h->prev_poc_lsb - h->poc_lsb < -max_poc_lsb/2) |
1508 |
h->poc_msb = h->prev_poc_msb - max_poc_lsb; |
1509 |
else
|
1510 |
h->poc_msb = h->prev_poc_msb; |
1511 |
//printf("poc: %d %d\n", h->poc_msb, h->poc_lsb);
|
1512 |
field_poc[0] =
|
1513 |
field_poc[1] = h->poc_msb + h->poc_lsb;
|
1514 |
if(s->picture_structure == PICT_FRAME)
|
1515 |
field_poc[1] += h->delta_poc_bottom;
|
1516 |
}else if(h->sps.poc_type==1){ |
1517 |
int abs_frame_num, expected_delta_per_poc_cycle, expectedpoc;
|
1518 |
int i;
|
1519 |
|
1520 |
if(h->sps.poc_cycle_length != 0) |
1521 |
abs_frame_num = h->frame_num_offset + h->frame_num; |
1522 |
else
|
1523 |
abs_frame_num = 0;
|
1524 |
|
1525 |
if(h->nal_ref_idc==0 && abs_frame_num > 0) |
1526 |
abs_frame_num--; |
1527 |
|
1528 |
expected_delta_per_poc_cycle = 0;
|
1529 |
for(i=0; i < h->sps.poc_cycle_length; i++) |
1530 |
expected_delta_per_poc_cycle += h->sps.offset_for_ref_frame[ i ]; //FIXME integrate during sps parse
|
1531 |
|
1532 |
if(abs_frame_num > 0){ |
1533 |
int poc_cycle_cnt = (abs_frame_num - 1) / h->sps.poc_cycle_length; |
1534 |
int frame_num_in_poc_cycle = (abs_frame_num - 1) % h->sps.poc_cycle_length; |
1535 |
|
1536 |
expectedpoc = poc_cycle_cnt * expected_delta_per_poc_cycle; |
1537 |
for(i = 0; i <= frame_num_in_poc_cycle; i++) |
1538 |
expectedpoc = expectedpoc + h->sps.offset_for_ref_frame[ i ]; |
1539 |
} else
|
1540 |
expectedpoc = 0;
|
1541 |
|
1542 |
if(h->nal_ref_idc == 0) |
1543 |
expectedpoc = expectedpoc + h->sps.offset_for_non_ref_pic; |
1544 |
|
1545 |
field_poc[0] = expectedpoc + h->delta_poc[0]; |
1546 |
field_poc[1] = field_poc[0] + h->sps.offset_for_top_to_bottom_field; |
1547 |
|
1548 |
if(s->picture_structure == PICT_FRAME)
|
1549 |
field_poc[1] += h->delta_poc[1]; |
1550 |
}else{
|
1551 |
int poc= 2*(h->frame_num_offset + h->frame_num); |
1552 |
|
1553 |
if(!h->nal_ref_idc)
|
1554 |
poc--; |
1555 |
|
1556 |
field_poc[0]= poc;
|
1557 |
field_poc[1]= poc;
|
1558 |
} |
1559 |
|
1560 |
if(s->picture_structure != PICT_BOTTOM_FIELD)
|
1561 |
s->current_picture_ptr->field_poc[0]= field_poc[0]; |
1562 |
if(s->picture_structure != PICT_TOP_FIELD)
|
1563 |
s->current_picture_ptr->field_poc[1]= field_poc[1]; |
1564 |
cur->poc= FFMIN(cur->field_poc[0], cur->field_poc[1]); |
1565 |
|
1566 |
return 0; |
1567 |
} |
1568 |
|
1569 |
|
1570 |
/**
|
1571 |
* initialize scan tables
|
1572 |
*/
|
1573 |
static void init_scan_tables(H264Context *h){ |
1574 |
int i;
|
1575 |
for(i=0; i<16; i++){ |
1576 |
#define T(x) (x>>2) | ((x<<2) & 0xF) |
1577 |
h->zigzag_scan[i] = T(zigzag_scan[i]); |
1578 |
h-> field_scan[i] = T( field_scan[i]); |
1579 |
#undef T
|
1580 |
} |
1581 |
for(i=0; i<64; i++){ |
1582 |
#define T(x) (x>>3) | ((x&7)<<3) |
1583 |
h->zigzag_scan8x8[i] = T(ff_zigzag_direct[i]); |
1584 |
h->zigzag_scan8x8_cavlc[i] = T(zigzag_scan8x8_cavlc[i]); |
1585 |
h->field_scan8x8[i] = T(field_scan8x8[i]); |
1586 |
h->field_scan8x8_cavlc[i] = T(field_scan8x8_cavlc[i]); |
1587 |
#undef T
|
1588 |
} |
1589 |
if(h->sps.transform_bypass){ //FIXME same ugly |
1590 |
h->zigzag_scan_q0 = zigzag_scan; |
1591 |
h->zigzag_scan8x8_q0 = ff_zigzag_direct; |
1592 |
h->zigzag_scan8x8_cavlc_q0 = zigzag_scan8x8_cavlc; |
1593 |
h->field_scan_q0 = field_scan; |
1594 |
h->field_scan8x8_q0 = field_scan8x8; |
1595 |
h->field_scan8x8_cavlc_q0 = field_scan8x8_cavlc; |
1596 |
}else{
|
1597 |
h->zigzag_scan_q0 = h->zigzag_scan; |
1598 |
h->zigzag_scan8x8_q0 = h->zigzag_scan8x8; |
1599 |
h->zigzag_scan8x8_cavlc_q0 = h->zigzag_scan8x8_cavlc; |
1600 |
h->field_scan_q0 = h->field_scan; |
1601 |
h->field_scan8x8_q0 = h->field_scan8x8; |
1602 |
h->field_scan8x8_cavlc_q0 = h->field_scan8x8_cavlc; |
1603 |
} |
1604 |
} |
1605 |
|
1606 |
static void field_end(H264Context *h){ |
1607 |
MpegEncContext * const s = &h->s;
|
1608 |
AVCodecContext * const avctx= s->avctx;
|
1609 |
s->mb_y= 0;
|
1610 |
|
1611 |
s->current_picture_ptr->qscale_type= FF_QSCALE_TYPE_H264; |
1612 |
s->current_picture_ptr->pict_type= s->pict_type; |
1613 |
|
1614 |
if (CONFIG_H264_VDPAU_DECODER && s->avctx->codec->capabilities&CODEC_CAP_HWACCEL_VDPAU)
|
1615 |
ff_vdpau_h264_set_reference_frames(s); |
1616 |
|
1617 |
if(!s->dropable) {
|
1618 |
ff_h264_execute_ref_pic_marking(h, h->mmco, h->mmco_index); |
1619 |
h->prev_poc_msb= h->poc_msb; |
1620 |
h->prev_poc_lsb= h->poc_lsb; |
1621 |
} |
1622 |
h->prev_frame_num_offset= h->frame_num_offset; |
1623 |
h->prev_frame_num= h->frame_num; |
1624 |
|
1625 |
if (avctx->hwaccel) {
|
1626 |
if (avctx->hwaccel->end_frame(avctx) < 0) |
1627 |
av_log(avctx, AV_LOG_ERROR, "hardware accelerator failed to decode picture\n");
|
1628 |
} |
1629 |
|
1630 |
if (CONFIG_H264_VDPAU_DECODER && s->avctx->codec->capabilities&CODEC_CAP_HWACCEL_VDPAU)
|
1631 |
ff_vdpau_h264_picture_complete(s); |
1632 |
|
1633 |
/*
|
1634 |
* FIXME: Error handling code does not seem to support interlaced
|
1635 |
* when slices span multiple rows
|
1636 |
* The ff_er_add_slice calls don't work right for bottom
|
1637 |
* fields; they cause massive erroneous error concealing
|
1638 |
* Error marking covers both fields (top and bottom).
|
1639 |
* This causes a mismatched s->error_count
|
1640 |
* and a bad error table. Further, the error count goes to
|
1641 |
* INT_MAX when called for bottom field, because mb_y is
|
1642 |
* past end by one (callers fault) and resync_mb_y != 0
|
1643 |
* causes problems for the first MB line, too.
|
1644 |
*/
|
1645 |
if (!FIELD_PICTURE)
|
1646 |
ff_er_frame_end(s); |
1647 |
|
1648 |
MPV_frame_end(s); |
1649 |
|
1650 |
h->current_slice=0;
|
1651 |
} |
1652 |
|
1653 |
/**
|
1654 |
* Replicate H264 "master" context to thread contexts.
|
1655 |
*/
|
1656 |
static void clone_slice(H264Context *dst, H264Context *src) |
1657 |
{ |
1658 |
memcpy(dst->block_offset, src->block_offset, sizeof(dst->block_offset));
|
1659 |
dst->s.current_picture_ptr = src->s.current_picture_ptr; |
1660 |
dst->s.current_picture = src->s.current_picture; |
1661 |
dst->s.linesize = src->s.linesize; |
1662 |
dst->s.uvlinesize = src->s.uvlinesize; |
1663 |
dst->s.first_field = src->s.first_field; |
1664 |
|
1665 |
dst->prev_poc_msb = src->prev_poc_msb; |
1666 |
dst->prev_poc_lsb = src->prev_poc_lsb; |
1667 |
dst->prev_frame_num_offset = src->prev_frame_num_offset; |
1668 |
dst->prev_frame_num = src->prev_frame_num; |
1669 |
dst->short_ref_count = src->short_ref_count; |
1670 |
|
1671 |
memcpy(dst->short_ref, src->short_ref, sizeof(dst->short_ref));
|
1672 |
memcpy(dst->long_ref, src->long_ref, sizeof(dst->long_ref));
|
1673 |
memcpy(dst->default_ref_list, src->default_ref_list, sizeof(dst->default_ref_list));
|
1674 |
memcpy(dst->ref_list, src->ref_list, sizeof(dst->ref_list));
|
1675 |
|
1676 |
memcpy(dst->dequant4_coeff, src->dequant4_coeff, sizeof(src->dequant4_coeff));
|
1677 |
memcpy(dst->dequant8_coeff, src->dequant8_coeff, sizeof(src->dequant8_coeff));
|
1678 |
} |
1679 |
|
1680 |
/**
|
1681 |
* computes profile from profile_idc and constraint_set?_flags
|
1682 |
*
|
1683 |
* @param sps SPS
|
1684 |
*
|
1685 |
* @return profile as defined by FF_PROFILE_H264_*
|
1686 |
*/
|
1687 |
int ff_h264_get_profile(SPS *sps)
|
1688 |
{ |
1689 |
int profile = sps->profile_idc;
|
1690 |
|
1691 |
switch(sps->profile_idc) {
|
1692 |
case FF_PROFILE_H264_BASELINE:
|
1693 |
// constraint_set1_flag set to 1
|
1694 |
profile |= (sps->constraint_set_flags & 1<<1) ? FF_PROFILE_H264_CONSTRAINED : 0; |
1695 |
break;
|
1696 |
case FF_PROFILE_H264_HIGH_10:
|
1697 |
case FF_PROFILE_H264_HIGH_422:
|
1698 |
case FF_PROFILE_H264_HIGH_444_PREDICTIVE:
|
1699 |
// constraint_set3_flag set to 1
|
1700 |
profile |= (sps->constraint_set_flags & 1<<3) ? FF_PROFILE_H264_INTRA : 0; |
1701 |
break;
|
1702 |
} |
1703 |
|
1704 |
return profile;
|
1705 |
} |
1706 |
|
1707 |
/**
|
1708 |
* decodes a slice header.
|
1709 |
* This will also call MPV_common_init() and frame_start() as needed.
|
1710 |
*
|
1711 |
* @param h h264context
|
1712 |
* @param h0 h264 master context (differs from 'h' when doing sliced based parallel decoding)
|
1713 |
*
|
1714 |
* @return 0 if okay, <0 if an error occurred, 1 if decoding must not be multithreaded
|
1715 |
*/
|
1716 |
static int decode_slice_header(H264Context *h, H264Context *h0){ |
1717 |
MpegEncContext * const s = &h->s;
|
1718 |
MpegEncContext * const s0 = &h0->s;
|
1719 |
unsigned int first_mb_in_slice; |
1720 |
unsigned int pps_id; |
1721 |
int num_ref_idx_active_override_flag;
|
1722 |
unsigned int slice_type, tmp, i, j; |
1723 |
int default_ref_list_done = 0; |
1724 |
int last_pic_structure;
|
1725 |
|
1726 |
s->dropable= h->nal_ref_idc == 0;
|
1727 |
|
1728 |
if((s->avctx->flags2 & CODEC_FLAG2_FAST) && !h->nal_ref_idc){
|
1729 |
s->me.qpel_put= s->dsp.put_2tap_qpel_pixels_tab; |
1730 |
s->me.qpel_avg= s->dsp.avg_2tap_qpel_pixels_tab; |
1731 |
}else{
|
1732 |
s->me.qpel_put= s->dsp.put_h264_qpel_pixels_tab; |
1733 |
s->me.qpel_avg= s->dsp.avg_h264_qpel_pixels_tab; |
1734 |
} |
1735 |
|
1736 |
first_mb_in_slice= get_ue_golomb(&s->gb); |
1737 |
|
1738 |
if(first_mb_in_slice == 0){ //FIXME better field boundary detection |
1739 |
if(h0->current_slice && FIELD_PICTURE){
|
1740 |
field_end(h); |
1741 |
} |
1742 |
|
1743 |
h0->current_slice = 0;
|
1744 |
if (!s0->first_field)
|
1745 |
s->current_picture_ptr= NULL;
|
1746 |
} |
1747 |
|
1748 |
slice_type= get_ue_golomb_31(&s->gb); |
1749 |
if(slice_type > 9){ |
1750 |
av_log(h->s.avctx, AV_LOG_ERROR, "slice type too large (%d) at %d %d\n", h->slice_type, s->mb_x, s->mb_y);
|
1751 |
return -1; |
1752 |
} |
1753 |
if(slice_type > 4){ |
1754 |
slice_type -= 5;
|
1755 |
h->slice_type_fixed=1;
|
1756 |
}else
|
1757 |
h->slice_type_fixed=0;
|
1758 |
|
1759 |
slice_type= golomb_to_pict_type[ slice_type ]; |
1760 |
if (slice_type == FF_I_TYPE
|
1761 |
|| (h0->current_slice != 0 && slice_type == h0->last_slice_type) ) {
|
1762 |
default_ref_list_done = 1;
|
1763 |
} |
1764 |
h->slice_type= slice_type; |
1765 |
h->slice_type_nos= slice_type & 3;
|
1766 |
|
1767 |
s->pict_type= h->slice_type; // to make a few old functions happy, it's wrong though
|
1768 |
|
1769 |
pps_id= get_ue_golomb(&s->gb); |
1770 |
if(pps_id>=MAX_PPS_COUNT){
|
1771 |
av_log(h->s.avctx, AV_LOG_ERROR, "pps_id out of range\n");
|
1772 |
return -1; |
1773 |
} |
1774 |
if(!h0->pps_buffers[pps_id]) {
|
1775 |
av_log(h->s.avctx, AV_LOG_ERROR, "non-existing PPS %u referenced\n", pps_id);
|
1776 |
return -1; |
1777 |
} |
1778 |
h->pps= *h0->pps_buffers[pps_id]; |
1779 |
|
1780 |
if(!h0->sps_buffers[h->pps.sps_id]) {
|
1781 |
av_log(h->s.avctx, AV_LOG_ERROR, "non-existing SPS %u referenced\n", h->pps.sps_id);
|
1782 |
return -1; |
1783 |
} |
1784 |
h->sps = *h0->sps_buffers[h->pps.sps_id]; |
1785 |
|
1786 |
s->avctx->profile = ff_h264_get_profile(&h->sps); |
1787 |
s->avctx->level = h->sps.level_idc; |
1788 |
s->avctx->refs = h->sps.ref_frame_count; |
1789 |
|
1790 |
if(h == h0 && h->dequant_coeff_pps != pps_id){
|
1791 |
h->dequant_coeff_pps = pps_id; |
1792 |
init_dequant_tables(h); |
1793 |
} |
1794 |
|
1795 |
s->mb_width= h->sps.mb_width; |
1796 |
s->mb_height= h->sps.mb_height * (2 - h->sps.frame_mbs_only_flag);
|
1797 |
|
1798 |
h->b_stride= s->mb_width*4;
|
1799 |
|
1800 |
s->width = 16*s->mb_width - 2*FFMIN(h->sps.crop_right, 7); |
1801 |
if(h->sps.frame_mbs_only_flag)
|
1802 |
s->height= 16*s->mb_height - 2*FFMIN(h->sps.crop_bottom, 7); |
1803 |
else
|
1804 |
s->height= 16*s->mb_height - 4*FFMIN(h->sps.crop_bottom, 7); |
1805 |
|
1806 |
if (s->context_initialized
|
1807 |
&& ( s->width != s->avctx->width || s->height != s->avctx->height |
1808 |
|| av_cmp_q(h->sps.sar, s->avctx->sample_aspect_ratio))) { |
1809 |
if(h != h0)
|
1810 |
return -1; // width / height changed during parallelized decoding |
1811 |
free_tables(h, 0);
|
1812 |
flush_dpb(s->avctx); |
1813 |
MPV_common_end(s); |
1814 |
} |
1815 |
if (!s->context_initialized) {
|
1816 |
if(h != h0)
|
1817 |
return -1; // we cant (re-)initialize context during parallel decoding |
1818 |
|
1819 |
avcodec_set_dimensions(s->avctx, s->width, s->height); |
1820 |
s->avctx->sample_aspect_ratio= h->sps.sar; |
1821 |
av_assert0(s->avctx->sample_aspect_ratio.den); |
1822 |
|
1823 |
if(h->sps.video_signal_type_present_flag){
|
1824 |
s->avctx->color_range = h->sps.full_range ? AVCOL_RANGE_JPEG : AVCOL_RANGE_MPEG; |
1825 |
if(h->sps.colour_description_present_flag){
|
1826 |
s->avctx->color_primaries = h->sps.color_primaries; |
1827 |
s->avctx->color_trc = h->sps.color_trc; |
1828 |
s->avctx->colorspace = h->sps.colorspace; |
1829 |
} |
1830 |
} |
1831 |
|
1832 |
if(h->sps.timing_info_present_flag){
|
1833 |
int64_t den= h->sps.time_scale; |
1834 |
if(h->x264_build < 44U) |
1835 |
den *= 2;
|
1836 |
av_reduce(&s->avctx->time_base.num, &s->avctx->time_base.den, |
1837 |
h->sps.num_units_in_tick, den, 1<<30); |
1838 |
} |
1839 |
s->avctx->pix_fmt = s->avctx->get_format(s->avctx, |
1840 |
s->avctx->codec->pix_fmts ? |
1841 |
s->avctx->codec->pix_fmts : |
1842 |
s->avctx->color_range == AVCOL_RANGE_JPEG ? |
1843 |
hwaccel_pixfmt_list_h264_jpeg_420 : |
1844 |
ff_hwaccel_pixfmt_list_420); |
1845 |
s->avctx->hwaccel = ff_find_hwaccel(s->avctx->codec->id, s->avctx->pix_fmt); |
1846 |
|
1847 |
if (MPV_common_init(s) < 0) |
1848 |
return -1; |
1849 |
s->first_field = 0;
|
1850 |
h->prev_interlaced_frame = 1;
|
1851 |
|
1852 |
init_scan_tables(h); |
1853 |
ff_h264_alloc_tables(h); |
1854 |
|
1855 |
for(i = 1; i < s->avctx->thread_count; i++) { |
1856 |
H264Context *c; |
1857 |
c = h->thread_context[i] = av_malloc(sizeof(H264Context));
|
1858 |
memcpy(c, h->s.thread_context[i], sizeof(MpegEncContext));
|
1859 |
memset(&c->s + 1, 0, sizeof(H264Context) - sizeof(MpegEncContext)); |
1860 |
c->h264dsp = h->h264dsp; |
1861 |
c->sps = h->sps; |
1862 |
c->pps = h->pps; |
1863 |
init_scan_tables(c); |
1864 |
clone_tables(c, h, i); |
1865 |
} |
1866 |
|
1867 |
for(i = 0; i < s->avctx->thread_count; i++) |
1868 |
if(context_init(h->thread_context[i]) < 0) |
1869 |
return -1; |
1870 |
} |
1871 |
|
1872 |
h->frame_num= get_bits(&s->gb, h->sps.log2_max_frame_num); |
1873 |
|
1874 |
h->mb_mbaff = 0;
|
1875 |
h->mb_aff_frame = 0;
|
1876 |
last_pic_structure = s0->picture_structure; |
1877 |
if(h->sps.frame_mbs_only_flag){
|
1878 |
s->picture_structure= PICT_FRAME; |
1879 |
}else{
|
1880 |
if(get_bits1(&s->gb)) { //field_pic_flag |
1881 |
s->picture_structure= PICT_TOP_FIELD + get_bits1(&s->gb); //bottom_field_flag
|
1882 |
} else {
|
1883 |
s->picture_structure= PICT_FRAME; |
1884 |
h->mb_aff_frame = h->sps.mb_aff; |
1885 |
} |
1886 |
} |
1887 |
h->mb_field_decoding_flag= s->picture_structure != PICT_FRAME; |
1888 |
|
1889 |
if(h0->current_slice == 0){ |
1890 |
while(h->frame_num != h->prev_frame_num &&
|
1891 |
h->frame_num != (h->prev_frame_num+1)%(1<<h->sps.log2_max_frame_num)){ |
1892 |
Picture *prev = h->short_ref_count ? h->short_ref[0] : NULL; |
1893 |
av_log(h->s.avctx, AV_LOG_DEBUG, "Frame num gap %d %d\n", h->frame_num, h->prev_frame_num);
|
1894 |
if (ff_h264_frame_start(h) < 0) |
1895 |
return -1; |
1896 |
h->prev_frame_num++; |
1897 |
h->prev_frame_num %= 1<<h->sps.log2_max_frame_num;
|
1898 |
s->current_picture_ptr->frame_num= h->prev_frame_num; |
1899 |
ff_generate_sliding_window_mmcos(h); |
1900 |
ff_h264_execute_ref_pic_marking(h, h->mmco, h->mmco_index); |
1901 |
/* Error concealment: if a ref is missing, copy the previous ref in its place.
|
1902 |
* FIXME: avoiding a memcpy would be nice, but ref handling makes many assumptions
|
1903 |
* about there being no actual duplicates.
|
1904 |
* FIXME: this doesn't copy padding for out-of-frame motion vectors. Given we're
|
1905 |
* concealing a lost frame, this probably isn't noticable by comparison, but it should
|
1906 |
* be fixed. */
|
1907 |
if (h->short_ref_count) {
|
1908 |
if (prev) {
|
1909 |
av_image_copy(h->short_ref[0]->data, h->short_ref[0]->linesize, |
1910 |
(const uint8_t**)prev->data, prev->linesize,
|
1911 |
s->avctx->pix_fmt, s->mb_width*16, s->mb_height*16); |
1912 |
h->short_ref[0]->poc = prev->poc+2; |
1913 |
} |
1914 |
h->short_ref[0]->frame_num = h->prev_frame_num;
|
1915 |
} |
1916 |
} |
1917 |
|
1918 |
/* See if we have a decoded first field looking for a pair... */
|
1919 |
if (s0->first_field) {
|
1920 |
assert(s0->current_picture_ptr); |
1921 |
assert(s0->current_picture_ptr->data[0]);
|
1922 |
assert(s0->current_picture_ptr->reference != DELAYED_PIC_REF); |
1923 |
|
1924 |
/* figure out if we have a complementary field pair */
|
1925 |
if (!FIELD_PICTURE || s->picture_structure == last_pic_structure) {
|
1926 |
/*
|
1927 |
* Previous field is unmatched. Don't display it, but let it
|
1928 |
* remain for reference if marked as such.
|
1929 |
*/
|
1930 |
s0->current_picture_ptr = NULL;
|
1931 |
s0->first_field = FIELD_PICTURE; |
1932 |
|
1933 |
} else {
|
1934 |
if (h->nal_ref_idc &&
|
1935 |
s0->current_picture_ptr->reference && |
1936 |
s0->current_picture_ptr->frame_num != h->frame_num) { |
1937 |
/*
|
1938 |
* This and previous field were reference, but had
|
1939 |
* different frame_nums. Consider this field first in
|
1940 |
* pair. Throw away previous field except for reference
|
1941 |
* purposes.
|
1942 |
*/
|
1943 |
s0->first_field = 1;
|
1944 |
s0->current_picture_ptr = NULL;
|
1945 |
|
1946 |
} else {
|
1947 |
/* Second field in complementary pair */
|
1948 |
s0->first_field = 0;
|
1949 |
} |
1950 |
} |
1951 |
|
1952 |
} else {
|
1953 |
/* Frame or first field in a potentially complementary pair */
|
1954 |
assert(!s0->current_picture_ptr); |
1955 |
s0->first_field = FIELD_PICTURE; |
1956 |
} |
1957 |
|
1958 |
if((!FIELD_PICTURE || s0->first_field) && ff_h264_frame_start(h) < 0) { |
1959 |
s0->first_field = 0;
|
1960 |
return -1; |
1961 |
} |
1962 |
} |
1963 |
if(h != h0)
|
1964 |
clone_slice(h, h0); |
1965 |
|
1966 |
s->current_picture_ptr->frame_num= h->frame_num; //FIXME frame_num cleanup
|
1967 |
|
1968 |
assert(s->mb_num == s->mb_width * s->mb_height); |
1969 |
if(first_mb_in_slice << FIELD_OR_MBAFF_PICTURE >= s->mb_num ||
|
1970 |
first_mb_in_slice >= s->mb_num){ |
1971 |
av_log(h->s.avctx, AV_LOG_ERROR, "first_mb_in_slice overflow\n");
|
1972 |
return -1; |
1973 |
} |
1974 |
s->resync_mb_x = s->mb_x = first_mb_in_slice % s->mb_width; |
1975 |
s->resync_mb_y = s->mb_y = (first_mb_in_slice / s->mb_width) << FIELD_OR_MBAFF_PICTURE; |
1976 |
if (s->picture_structure == PICT_BOTTOM_FIELD)
|
1977 |
s->resync_mb_y = s->mb_y = s->mb_y + 1;
|
1978 |
assert(s->mb_y < s->mb_height); |
1979 |
|
1980 |
if(s->picture_structure==PICT_FRAME){
|
1981 |
h->curr_pic_num= h->frame_num; |
1982 |
h->max_pic_num= 1<< h->sps.log2_max_frame_num;
|
1983 |
}else{
|
1984 |
h->curr_pic_num= 2*h->frame_num + 1; |
1985 |
h->max_pic_num= 1<<(h->sps.log2_max_frame_num + 1); |
1986 |
} |
1987 |
|
1988 |
if(h->nal_unit_type == NAL_IDR_SLICE){
|
1989 |
get_ue_golomb(&s->gb); /* idr_pic_id */
|
1990 |
} |
1991 |
|
1992 |
if(h->sps.poc_type==0){ |
1993 |
h->poc_lsb= get_bits(&s->gb, h->sps.log2_max_poc_lsb); |
1994 |
|
1995 |
if(h->pps.pic_order_present==1 && s->picture_structure==PICT_FRAME){ |
1996 |
h->delta_poc_bottom= get_se_golomb(&s->gb); |
1997 |
} |
1998 |
} |
1999 |
|
2000 |
if(h->sps.poc_type==1 && !h->sps.delta_pic_order_always_zero_flag){ |
2001 |
h->delta_poc[0]= get_se_golomb(&s->gb);
|
2002 |
|
2003 |
if(h->pps.pic_order_present==1 && s->picture_structure==PICT_FRAME) |
2004 |
h->delta_poc[1]= get_se_golomb(&s->gb);
|
2005 |
} |
2006 |
|
2007 |
init_poc(h); |
2008 |
|
2009 |
if(h->pps.redundant_pic_cnt_present){
|
2010 |
h->redundant_pic_count= get_ue_golomb(&s->gb); |
2011 |
} |
2012 |
|
2013 |
//set defaults, might be overridden a few lines later
|
2014 |
h->ref_count[0]= h->pps.ref_count[0]; |
2015 |
h->ref_count[1]= h->pps.ref_count[1]; |
2016 |
|
2017 |
if(h->slice_type_nos != FF_I_TYPE){
|
2018 |
if(h->slice_type_nos == FF_B_TYPE){
|
2019 |
h->direct_spatial_mv_pred= get_bits1(&s->gb); |
2020 |
} |
2021 |
num_ref_idx_active_override_flag= get_bits1(&s->gb); |
2022 |
|
2023 |
if(num_ref_idx_active_override_flag){
|
2024 |
h->ref_count[0]= get_ue_golomb(&s->gb) + 1; |
2025 |
if(h->slice_type_nos==FF_B_TYPE)
|
2026 |
h->ref_count[1]= get_ue_golomb(&s->gb) + 1; |
2027 |
|
2028 |
if(h->ref_count[0]-1 > 32-1 || h->ref_count[1]-1 > 32-1){ |
2029 |
av_log(h->s.avctx, AV_LOG_ERROR, "reference overflow\n");
|
2030 |
h->ref_count[0]= h->ref_count[1]= 1; |
2031 |
return -1; |
2032 |
} |
2033 |
} |
2034 |
if(h->slice_type_nos == FF_B_TYPE)
|
2035 |
h->list_count= 2;
|
2036 |
else
|
2037 |
h->list_count= 1;
|
2038 |
}else
|
2039 |
h->list_count= 0;
|
2040 |
|
2041 |
if(!default_ref_list_done){
|
2042 |
ff_h264_fill_default_ref_list(h); |
2043 |
} |
2044 |
|
2045 |
if(h->slice_type_nos!=FF_I_TYPE && ff_h264_decode_ref_pic_list_reordering(h) < 0) |
2046 |
return -1; |
2047 |
|
2048 |
if(h->slice_type_nos!=FF_I_TYPE){
|
2049 |
s->last_picture_ptr= &h->ref_list[0][0]; |
2050 |
ff_copy_picture(&s->last_picture, s->last_picture_ptr); |
2051 |
} |
2052 |
if(h->slice_type_nos==FF_B_TYPE){
|
2053 |
s->next_picture_ptr= &h->ref_list[1][0]; |
2054 |
ff_copy_picture(&s->next_picture, s->next_picture_ptr); |
2055 |
} |
2056 |
|
2057 |
if( (h->pps.weighted_pred && h->slice_type_nos == FF_P_TYPE )
|
2058 |
|| (h->pps.weighted_bipred_idc==1 && h->slice_type_nos== FF_B_TYPE ) )
|
2059 |
pred_weight_table(h); |
2060 |
else if(h->pps.weighted_bipred_idc==2 && h->slice_type_nos== FF_B_TYPE){ |
2061 |
implicit_weight_table(h, -1);
|
2062 |
}else {
|
2063 |
h->use_weight = 0;
|
2064 |
for (i = 0; i < 2; i++) { |
2065 |
h->luma_weight_flag[i] = 0;
|
2066 |
h->chroma_weight_flag[i] = 0;
|
2067 |
} |
2068 |
} |
2069 |
|
2070 |
if(h->nal_ref_idc)
|
2071 |
ff_h264_decode_ref_pic_marking(h0, &s->gb); |
2072 |
|
2073 |
if(FRAME_MBAFF){
|
2074 |
ff_h264_fill_mbaff_ref_list(h); |
2075 |
|
2076 |
if(h->pps.weighted_bipred_idc==2 && h->slice_type_nos== FF_B_TYPE){ |
2077 |
implicit_weight_table(h, 0);
|
2078 |
implicit_weight_table(h, 1);
|
2079 |
} |
2080 |
} |
2081 |
|
2082 |
if(h->slice_type_nos==FF_B_TYPE && !h->direct_spatial_mv_pred)
|
2083 |
ff_h264_direct_dist_scale_factor(h); |
2084 |
ff_h264_direct_ref_list_init(h); |
2085 |
|
2086 |
if( h->slice_type_nos != FF_I_TYPE && h->pps.cabac ){
|
2087 |
tmp = get_ue_golomb_31(&s->gb); |
2088 |
if(tmp > 2){ |
2089 |
av_log(s->avctx, AV_LOG_ERROR, "cabac_init_idc overflow\n");
|
2090 |
return -1; |
2091 |
} |
2092 |
h->cabac_init_idc= tmp; |
2093 |
} |
2094 |
|
2095 |
h->last_qscale_diff = 0;
|
2096 |
tmp = h->pps.init_qp + get_se_golomb(&s->gb); |
2097 |
if(tmp>51){ |
2098 |
av_log(s->avctx, AV_LOG_ERROR, "QP %u out of range\n", tmp);
|
2099 |
return -1; |
2100 |
} |
2101 |
s->qscale= tmp; |
2102 |
h->chroma_qp[0] = get_chroma_qp(h, 0, s->qscale); |
2103 |
h->chroma_qp[1] = get_chroma_qp(h, 1, s->qscale); |
2104 |
//FIXME qscale / qp ... stuff
|
2105 |
if(h->slice_type == FF_SP_TYPE){
|
2106 |
get_bits1(&s->gb); /* sp_for_switch_flag */
|
2107 |
} |
2108 |
if(h->slice_type==FF_SP_TYPE || h->slice_type == FF_SI_TYPE){
|
2109 |
get_se_golomb(&s->gb); /* slice_qs_delta */
|
2110 |
} |
2111 |
|
2112 |
h->deblocking_filter = 1;
|
2113 |
h->slice_alpha_c0_offset = 52;
|
2114 |
h->slice_beta_offset = 52;
|
2115 |
if( h->pps.deblocking_filter_parameters_present ) {
|
2116 |
tmp= get_ue_golomb_31(&s->gb); |
2117 |
if(tmp > 2){ |
2118 |
av_log(s->avctx, AV_LOG_ERROR, "deblocking_filter_idc %u out of range\n", tmp);
|
2119 |
return -1; |
2120 |
} |
2121 |
h->deblocking_filter= tmp; |
2122 |
if(h->deblocking_filter < 2) |
2123 |
h->deblocking_filter^= 1; // 1<->0 |
2124 |
|
2125 |
if( h->deblocking_filter ) {
|
2126 |
h->slice_alpha_c0_offset += get_se_golomb(&s->gb) << 1;
|
2127 |
h->slice_beta_offset += get_se_golomb(&s->gb) << 1;
|
2128 |
if( h->slice_alpha_c0_offset > 104U |
2129 |
|| h->slice_beta_offset > 104U){
|
2130 |
av_log(s->avctx, AV_LOG_ERROR, "deblocking filter parameters %d %d out of range\n", h->slice_alpha_c0_offset, h->slice_beta_offset);
|
2131 |
return -1; |
2132 |
} |
2133 |
} |
2134 |
} |
2135 |
|
2136 |
if( s->avctx->skip_loop_filter >= AVDISCARD_ALL
|
2137 |
||(s->avctx->skip_loop_filter >= AVDISCARD_NONKEY && h->slice_type_nos != FF_I_TYPE) |
2138 |
||(s->avctx->skip_loop_filter >= AVDISCARD_BIDIR && h->slice_type_nos == FF_B_TYPE) |
2139 |
||(s->avctx->skip_loop_filter >= AVDISCARD_NONREF && h->nal_ref_idc == 0))
|
2140 |
h->deblocking_filter= 0;
|
2141 |
|
2142 |
if(h->deblocking_filter == 1 && h0->max_contexts > 1) { |
2143 |
if(s->avctx->flags2 & CODEC_FLAG2_FAST) {
|
2144 |
/* Cheat slightly for speed:
|
2145 |
Do not bother to deblock across slices. */
|
2146 |
h->deblocking_filter = 2;
|
2147 |
} else {
|
2148 |
h0->max_contexts = 1;
|
2149 |
if(!h0->single_decode_warning) {
|
2150 |
av_log(s->avctx, AV_LOG_INFO, "Cannot parallelize deblocking type 1, decoding such frames in sequential order\n");
|
2151 |
h0->single_decode_warning = 1;
|
2152 |
} |
2153 |
if(h != h0)
|
2154 |
return 1; // deblocking switched inside frame |
2155 |
} |
2156 |
} |
2157 |
h->qp_thresh= 15 + 52 - FFMIN(h->slice_alpha_c0_offset, h->slice_beta_offset) - FFMAX3(0, h->pps.chroma_qp_index_offset[0], h->pps.chroma_qp_index_offset[1]); |
2158 |
|
2159 |
#if 0 //FMO
|
2160 |
if( h->pps.num_slice_groups > 1 && h->pps.mb_slice_group_map_type >= 3 && h->pps.mb_slice_group_map_type <= 5)
|
2161 |
slice_group_change_cycle= get_bits(&s->gb, ?);
|
2162 |
#endif
|
2163 |
|
2164 |
h0->last_slice_type = slice_type; |
2165 |
h->slice_num = ++h0->current_slice; |
2166 |
if(h->slice_num >= MAX_SLICES){
|
2167 |
av_log(s->avctx, AV_LOG_ERROR, "Too many slices, increase MAX_SLICES and recompile\n");
|
2168 |
} |
2169 |
|
2170 |
for(j=0; j<2; j++){ |
2171 |
int id_list[16]; |
2172 |
int *ref2frm= h->ref2frm[h->slice_num&(MAX_SLICES-1)][j]; |
2173 |
for(i=0; i<16; i++){ |
2174 |
id_list[i]= 60;
|
2175 |
if(h->ref_list[j][i].data[0]){ |
2176 |
int k;
|
2177 |
uint8_t *base= h->ref_list[j][i].base[0];
|
2178 |
for(k=0; k<h->short_ref_count; k++) |
2179 |
if(h->short_ref[k]->base[0] == base){ |
2180 |
id_list[i]= k; |
2181 |
break;
|
2182 |
} |
2183 |
for(k=0; k<h->long_ref_count; k++) |
2184 |
if(h->long_ref[k] && h->long_ref[k]->base[0] == base){ |
2185 |
id_list[i]= h->short_ref_count + k; |
2186 |
break;
|
2187 |
} |
2188 |
} |
2189 |
} |
2190 |
|
2191 |
ref2frm[0]=
|
2192 |
ref2frm[1]= -1; |
2193 |
for(i=0; i<16; i++) |
2194 |
ref2frm[i+2]= 4*id_list[i] |
2195 |
+(h->ref_list[j][i].reference&3);
|
2196 |
ref2frm[18+0]= |
2197 |
ref2frm[18+1]= -1; |
2198 |
for(i=16; i<48; i++) |
2199 |
ref2frm[i+4]= 4*id_list[(i-16)>>1] |
2200 |
+(h->ref_list[j][i].reference&3);
|
2201 |
} |
2202 |
|
2203 |
h->emu_edge_width= (s->flags&CODEC_FLAG_EMU_EDGE) ? 0 : 16; |
2204 |
h->emu_edge_height= (FRAME_MBAFF || FIELD_PICTURE) ? 0 : h->emu_edge_width;
|
2205 |
|
2206 |
if(s->avctx->debug&FF_DEBUG_PICT_INFO){
|
2207 |
av_log(h->s.avctx, AV_LOG_DEBUG, "slice:%d %s mb:%d %c%s%s pps:%u frame:%d poc:%d/%d ref:%d/%d qp:%d loop:%d:%d:%d weight:%d%s %s\n",
|
2208 |
h->slice_num, |
2209 |
(s->picture_structure==PICT_FRAME ? "F" : s->picture_structure==PICT_TOP_FIELD ? "T" : "B"), |
2210 |
first_mb_in_slice, |
2211 |
av_get_pict_type_char(h->slice_type), h->slice_type_fixed ? " fix" : "", h->nal_unit_type == NAL_IDR_SLICE ? " IDR" : "", |
2212 |
pps_id, h->frame_num, |
2213 |
s->current_picture_ptr->field_poc[0], s->current_picture_ptr->field_poc[1], |
2214 |
h->ref_count[0], h->ref_count[1], |
2215 |
s->qscale, |
2216 |
h->deblocking_filter, h->slice_alpha_c0_offset/2-26, h->slice_beta_offset/2-26, |
2217 |
h->use_weight, |
2218 |
h->use_weight==1 && h->use_weight_chroma ? "c" : "", |
2219 |
h->slice_type == FF_B_TYPE ? (h->direct_spatial_mv_pred ? "SPAT" : "TEMP") : "" |
2220 |
); |
2221 |
} |
2222 |
|
2223 |
return 0; |
2224 |
} |
2225 |
|
2226 |
int ff_h264_get_slice_type(const H264Context *h) |
2227 |
{ |
2228 |
switch (h->slice_type) {
|
2229 |
case FF_P_TYPE: return 0; |
2230 |
case FF_B_TYPE: return 1; |
2231 |
case FF_I_TYPE: return 2; |
2232 |
case FF_SP_TYPE: return 3; |
2233 |
case FF_SI_TYPE: return 4; |
2234 |
default: return -1; |
2235 |
} |
2236 |
} |
2237 |
|
2238 |
/**
|
2239 |
*
|
2240 |
* @return non zero if the loop filter can be skiped
|
2241 |
*/
|
2242 |
static int fill_filter_caches(H264Context *h, int mb_type){ |
2243 |
MpegEncContext * const s = &h->s;
|
2244 |
const int mb_xy= h->mb_xy; |
2245 |
int top_xy, left_xy[2]; |
2246 |
int top_type, left_type[2]; |
2247 |
|
2248 |
top_xy = mb_xy - (s->mb_stride << MB_FIELD); |
2249 |
|
2250 |
//FIXME deblocking could skip the intra and nnz parts.
|
2251 |
|
2252 |
/* Wow, what a mess, why didn't they simplify the interlacing & intra
|
2253 |
* stuff, I can't imagine that these complex rules are worth it. */
|
2254 |
|
2255 |
left_xy[1] = left_xy[0] = mb_xy-1; |
2256 |
if(FRAME_MBAFF){
|
2257 |
const int left_mb_field_flag = IS_INTERLACED(s->current_picture.mb_type[mb_xy-1]); |
2258 |
const int curr_mb_field_flag = IS_INTERLACED(mb_type); |
2259 |
if(s->mb_y&1){ |
2260 |
if (left_mb_field_flag != curr_mb_field_flag) {
|
2261 |
left_xy[0] -= s->mb_stride;
|
2262 |
} |
2263 |
}else{
|
2264 |
if(curr_mb_field_flag){
|
2265 |
top_xy += s->mb_stride & (((s->current_picture.mb_type[top_xy ]>>7)&1)-1); |
2266 |
} |
2267 |
if (left_mb_field_flag != curr_mb_field_flag) {
|
2268 |
left_xy[1] += s->mb_stride;
|
2269 |
} |
2270 |
} |
2271 |
} |
2272 |
|
2273 |
h->top_mb_xy = top_xy; |
2274 |
h->left_mb_xy[0] = left_xy[0]; |
2275 |
h->left_mb_xy[1] = left_xy[1]; |
2276 |
{ |
2277 |
//for sufficiently low qp, filtering wouldn't do anything
|
2278 |
//this is a conservative estimate: could also check beta_offset and more accurate chroma_qp
|
2279 |
int qp_thresh = h->qp_thresh; //FIXME strictly we should store qp_thresh for each mb of a slice |
2280 |
int qp = s->current_picture.qscale_table[mb_xy];
|
2281 |
if(qp <= qp_thresh
|
2282 |
&& (left_xy[0]<0 || ((qp + s->current_picture.qscale_table[left_xy[0]] + 1)>>1) <= qp_thresh) |
2283 |
&& (top_xy < 0 || ((qp + s->current_picture.qscale_table[top_xy ] + 1)>>1) <= qp_thresh)){ |
2284 |
if(!FRAME_MBAFF)
|
2285 |
return 1; |
2286 |
if( (left_xy[0]< 0 || ((qp + s->current_picture.qscale_table[left_xy[1] ] + 1)>>1) <= qp_thresh) |
2287 |
&& (top_xy < s->mb_stride || ((qp + s->current_picture.qscale_table[top_xy -s->mb_stride] + 1)>>1) <= qp_thresh)) |
2288 |
return 1; |
2289 |
} |
2290 |
} |
2291 |
|
2292 |
top_type = s->current_picture.mb_type[top_xy] ; |
2293 |
left_type[0] = s->current_picture.mb_type[left_xy[0]]; |
2294 |
left_type[1] = s->current_picture.mb_type[left_xy[1]]; |
2295 |
if(h->deblocking_filter == 2){ |
2296 |
if(h->slice_table[top_xy ] != h->slice_num) top_type= 0; |
2297 |
if(h->slice_table[left_xy[0] ] != h->slice_num) left_type[0]= left_type[1]= 0; |
2298 |
}else{
|
2299 |
if(h->slice_table[top_xy ] == 0xFFFF) top_type= 0; |
2300 |
if(h->slice_table[left_xy[0] ] == 0xFFFF) left_type[0]= left_type[1] =0; |
2301 |
} |
2302 |
h->top_type = top_type ; |
2303 |
h->left_type[0]= left_type[0]; |
2304 |
h->left_type[1]= left_type[1]; |
2305 |
|
2306 |
if(IS_INTRA(mb_type))
|
2307 |
return 0; |
2308 |
|
2309 |
AV_COPY64(&h->non_zero_count_cache[0+8*1], &h->non_zero_count[mb_xy][ 0]); |
2310 |
AV_COPY64(&h->non_zero_count_cache[0+8*2], &h->non_zero_count[mb_xy][ 8]); |
2311 |
AV_COPY32(&h->non_zero_count_cache[0+8*5], &h->non_zero_count[mb_xy][16]); |
2312 |
AV_COPY32(&h->non_zero_count_cache[4+8*3], &h->non_zero_count[mb_xy][20]); |
2313 |
AV_COPY64(&h->non_zero_count_cache[0+8*4], &h->non_zero_count[mb_xy][24]); |
2314 |
|
2315 |
h->cbp= h->cbp_table[mb_xy]; |
2316 |
|
2317 |
{ |
2318 |
int list;
|
2319 |
for(list=0; list<h->list_count; list++){ |
2320 |
int8_t *ref; |
2321 |
int y, b_stride;
|
2322 |
int16_t (*mv_dst)[2];
|
2323 |
int16_t (*mv_src)[2];
|
2324 |
|
2325 |
if(!USES_LIST(mb_type, list)){
|
2326 |
fill_rectangle( h->mv_cache[list][scan8[0]], 4, 4, 8, pack16to32(0,0), 4); |
2327 |
AV_WN32A(&h->ref_cache[list][scan8[ 0]], ((LIST_NOT_USED)&0xFF)*0x01010101u); |
2328 |
AV_WN32A(&h->ref_cache[list][scan8[ 2]], ((LIST_NOT_USED)&0xFF)*0x01010101u); |
2329 |
AV_WN32A(&h->ref_cache[list][scan8[ 8]], ((LIST_NOT_USED)&0xFF)*0x01010101u); |
2330 |
AV_WN32A(&h->ref_cache[list][scan8[10]], ((LIST_NOT_USED)&0xFF)*0x01010101u); |
2331 |
continue;
|
2332 |
} |
2333 |
|
2334 |
ref = &s->current_picture.ref_index[list][4*mb_xy];
|
2335 |
{ |
2336 |
int (*ref2frm)[64] = h->ref2frm[ h->slice_num&(MAX_SLICES-1) ][0] + (MB_MBAFF ? 20 : 2); |
2337 |
AV_WN32A(&h->ref_cache[list][scan8[ 0]], (pack16to32(ref2frm[list][ref[0]],ref2frm[list][ref[1]])&0x00FF00FF)*0x0101); |
2338 |
AV_WN32A(&h->ref_cache[list][scan8[ 2]], (pack16to32(ref2frm[list][ref[0]],ref2frm[list][ref[1]])&0x00FF00FF)*0x0101); |
2339 |
ref += 2;
|
2340 |
AV_WN32A(&h->ref_cache[list][scan8[ 8]], (pack16to32(ref2frm[list][ref[0]],ref2frm[list][ref[1]])&0x00FF00FF)*0x0101); |
2341 |
AV_WN32A(&h->ref_cache[list][scan8[10]], (pack16to32(ref2frm[list][ref[0]],ref2frm[list][ref[1]])&0x00FF00FF)*0x0101); |
2342 |
} |
2343 |
|
2344 |
b_stride = h->b_stride; |
2345 |
mv_dst = &h->mv_cache[list][scan8[0]];
|
2346 |
mv_src = &s->current_picture.motion_val[list][4*s->mb_x + 4*s->mb_y*b_stride]; |
2347 |
for(y=0; y<4; y++){ |
2348 |
AV_COPY128(mv_dst + 8*y, mv_src + y*b_stride);
|
2349 |
} |
2350 |
|
2351 |
} |
2352 |
} |
2353 |
|
2354 |
|
2355 |
/*
|
2356 |
0 . T T. T T T T
|
2357 |
1 L . .L . . . .
|
2358 |
2 L . .L . . . .
|
2359 |
3 . T TL . . . .
|
2360 |
4 L . .L . . . .
|
2361 |
5 L . .. . . . .
|
2362 |
*/
|
2363 |
//FIXME constraint_intra_pred & partitioning & nnz (let us hope this is just a typo in the spec)
|
2364 |
if(top_type){
|
2365 |
AV_COPY32(&h->non_zero_count_cache[4+8*0], &h->non_zero_count[top_xy][4+3*8]); |
2366 |
} |
2367 |
|
2368 |
if(left_type[0]){ |
2369 |
h->non_zero_count_cache[3+8*1]= h->non_zero_count[left_xy[0]][7+0*8]; |
2370 |
h->non_zero_count_cache[3+8*2]= h->non_zero_count[left_xy[0]][7+1*8]; |
2371 |
h->non_zero_count_cache[3+8*3]= h->non_zero_count[left_xy[0]][7+2*8]; |
2372 |
h->non_zero_count_cache[3+8*4]= h->non_zero_count[left_xy[0]][7+3*8]; |
2373 |
} |
2374 |
|
2375 |
// CAVLC 8x8dct requires NNZ values for residual decoding that differ from what the loop filter needs
|
2376 |
if(!CABAC && h->pps.transform_8x8_mode){
|
2377 |
if(IS_8x8DCT(top_type)){
|
2378 |
h->non_zero_count_cache[4+8*0]= |
2379 |
h->non_zero_count_cache[5+8*0]= h->cbp_table[top_xy] & 4; |
2380 |
h->non_zero_count_cache[6+8*0]= |
2381 |
h->non_zero_count_cache[7+8*0]= h->cbp_table[top_xy] & 8; |
2382 |
} |
2383 |
if(IS_8x8DCT(left_type[0])){ |
2384 |
h->non_zero_count_cache[3+8*1]= |
2385 |
h->non_zero_count_cache[3+8*2]= h->cbp_table[left_xy[0]]&2; //FIXME check MBAFF |
2386 |
} |
2387 |
if(IS_8x8DCT(left_type[1])){ |
2388 |
h->non_zero_count_cache[3+8*3]= |
2389 |
h->non_zero_count_cache[3+8*4]= h->cbp_table[left_xy[1]]&8; //FIXME check MBAFF |
2390 |
} |
2391 |
|
2392 |
if(IS_8x8DCT(mb_type)){
|
2393 |
h->non_zero_count_cache[scan8[0 ]]= h->non_zero_count_cache[scan8[1 ]]= |
2394 |
h->non_zero_count_cache[scan8[2 ]]= h->non_zero_count_cache[scan8[3 ]]= h->cbp & 1; |
2395 |
|
2396 |
h->non_zero_count_cache[scan8[0+ 4]]= h->non_zero_count_cache[scan8[1+ 4]]= |
2397 |
h->non_zero_count_cache[scan8[2+ 4]]= h->non_zero_count_cache[scan8[3+ 4]]= h->cbp & 2; |
2398 |
|
2399 |
h->non_zero_count_cache[scan8[0+ 8]]= h->non_zero_count_cache[scan8[1+ 8]]= |
2400 |
h->non_zero_count_cache[scan8[2+ 8]]= h->non_zero_count_cache[scan8[3+ 8]]= h->cbp & 4; |
2401 |
|
2402 |
h->non_zero_count_cache[scan8[0+12]]= h->non_zero_count_cache[scan8[1+12]]= |
2403 |
h->non_zero_count_cache[scan8[2+12]]= h->non_zero_count_cache[scan8[3+12]]= h->cbp & 8; |
2404 |
} |
2405 |
} |
2406 |
|
2407 |
if(IS_INTER(mb_type) || IS_DIRECT(mb_type)){
|
2408 |
int list;
|
2409 |
for(list=0; list<h->list_count; list++){ |
2410 |
if(USES_LIST(top_type, list)){
|
2411 |
const int b_xy= h->mb2b_xy[top_xy] + 3*h->b_stride; |
2412 |
const int b8_xy= 4*top_xy + 2; |
2413 |
int (*ref2frm)[64] = h->ref2frm[ h->slice_table[top_xy]&(MAX_SLICES-1) ][0] + (MB_MBAFF ? 20 : 2); |
2414 |
AV_COPY128(h->mv_cache[list][scan8[0] + 0 - 1*8], s->current_picture.motion_val[list][b_xy + 0]); |
2415 |
h->ref_cache[list][scan8[0] + 0 - 1*8]= |
2416 |
h->ref_cache[list][scan8[0] + 1 - 1*8]= ref2frm[list][s->current_picture.ref_index[list][b8_xy + 0]]; |
2417 |
h->ref_cache[list][scan8[0] + 2 - 1*8]= |
2418 |
h->ref_cache[list][scan8[0] + 3 - 1*8]= ref2frm[list][s->current_picture.ref_index[list][b8_xy + 1]]; |
2419 |
}else{
|
2420 |
AV_ZERO128(h->mv_cache[list][scan8[0] + 0 - 1*8]); |
2421 |
AV_WN32A(&h->ref_cache[list][scan8[0] + 0 - 1*8], ((LIST_NOT_USED)&0xFF)*0x01010101u); |
2422 |
} |
2423 |
|
2424 |
if(!IS_INTERLACED(mb_type^left_type[0])){ |
2425 |
if(USES_LIST(left_type[0], list)){ |
2426 |
const int b_xy= h->mb2b_xy[left_xy[0]] + 3; |
2427 |
const int b8_xy= 4*left_xy[0] + 1; |
2428 |
int (*ref2frm)[64] = h->ref2frm[ h->slice_table[left_xy[0]]&(MAX_SLICES-1) ][0] + (MB_MBAFF ? 20 : 2); |
2429 |
AV_COPY32(h->mv_cache[list][scan8[0] - 1 + 0 ], s->current_picture.motion_val[list][b_xy + h->b_stride*0]); |
2430 |
AV_COPY32(h->mv_cache[list][scan8[0] - 1 + 8 ], s->current_picture.motion_val[list][b_xy + h->b_stride*1]); |
2431 |
AV_COPY32(h->mv_cache[list][scan8[0] - 1 +16 ], s->current_picture.motion_val[list][b_xy + h->b_stride*2]); |
2432 |
AV_COPY32(h->mv_cache[list][scan8[0] - 1 +24 ], s->current_picture.motion_val[list][b_xy + h->b_stride*3]); |
2433 |
h->ref_cache[list][scan8[0] - 1 + 0 ]= |
2434 |
h->ref_cache[list][scan8[0] - 1 + 8 ]= ref2frm[list][s->current_picture.ref_index[list][b8_xy + 2*0]]; |
2435 |
h->ref_cache[list][scan8[0] - 1 +16 ]= |
2436 |
h->ref_cache[list][scan8[0] - 1 +24 ]= ref2frm[list][s->current_picture.ref_index[list][b8_xy + 2*1]]; |
2437 |
}else{
|
2438 |
AV_ZERO32(h->mv_cache [list][scan8[0] - 1 + 0 ]); |
2439 |
AV_ZERO32(h->mv_cache [list][scan8[0] - 1 + 8 ]); |
2440 |
AV_ZERO32(h->mv_cache [list][scan8[0] - 1 +16 ]); |
2441 |
AV_ZERO32(h->mv_cache [list][scan8[0] - 1 +24 ]); |
2442 |
h->ref_cache[list][scan8[0] - 1 + 0 ]= |
2443 |
h->ref_cache[list][scan8[0] - 1 + 8 ]= |
2444 |
h->ref_cache[list][scan8[0] - 1 + 16 ]= |
2445 |
h->ref_cache[list][scan8[0] - 1 + 24 ]= LIST_NOT_USED; |
2446 |
} |
2447 |
} |
2448 |
} |
2449 |
} |
2450 |
|
2451 |
return 0; |
2452 |
} |
2453 |
|
2454 |
static void loop_filter(H264Context *h){ |
2455 |
MpegEncContext * const s = &h->s;
|
2456 |
uint8_t *dest_y, *dest_cb, *dest_cr; |
2457 |
int linesize, uvlinesize, mb_x, mb_y;
|
2458 |
const int end_mb_y= s->mb_y + FRAME_MBAFF; |
2459 |
const int old_slice_type= h->slice_type; |
2460 |
|
2461 |
if(h->deblocking_filter) {
|
2462 |
for(mb_x= 0; mb_x<s->mb_width; mb_x++){ |
2463 |
for(mb_y=end_mb_y - FRAME_MBAFF; mb_y<= end_mb_y; mb_y++){
|
2464 |
int mb_xy, mb_type;
|
2465 |
mb_xy = h->mb_xy = mb_x + mb_y*s->mb_stride; |
2466 |
h->slice_num= h->slice_table[mb_xy]; |
2467 |
mb_type= s->current_picture.mb_type[mb_xy]; |
2468 |
h->list_count= h->list_counts[mb_xy]; |
2469 |
|
2470 |
if(FRAME_MBAFF)
|
2471 |
h->mb_mbaff = h->mb_field_decoding_flag = !!IS_INTERLACED(mb_type); |
2472 |
|
2473 |
s->mb_x= mb_x; |
2474 |
s->mb_y= mb_y; |
2475 |
dest_y = s->current_picture.data[0] + (mb_x + mb_y * s->linesize ) * 16; |
2476 |
dest_cb = s->current_picture.data[1] + (mb_x + mb_y * s->uvlinesize) * 8; |
2477 |
dest_cr = s->current_picture.data[2] + (mb_x + mb_y * s->uvlinesize) * 8; |
2478 |
//FIXME simplify above
|
2479 |
|
2480 |
if (MB_FIELD) {
|
2481 |
linesize = h->mb_linesize = s->linesize * 2;
|
2482 |
uvlinesize = h->mb_uvlinesize = s->uvlinesize * 2;
|
2483 |
if(mb_y&1){ //FIXME move out of this function? |
2484 |
dest_y -= s->linesize*15;
|
2485 |
dest_cb-= s->uvlinesize*7;
|
2486 |
dest_cr-= s->uvlinesize*7;
|
2487 |
} |
2488 |
} else {
|
2489 |
linesize = h->mb_linesize = s->linesize; |
2490 |
uvlinesize = h->mb_uvlinesize = s->uvlinesize; |
2491 |
} |
2492 |
backup_mb_border(h, dest_y, dest_cb, dest_cr, linesize, uvlinesize, 0);
|
2493 |
if(fill_filter_caches(h, mb_type))
|
2494 |
continue;
|
2495 |
h->chroma_qp[0] = get_chroma_qp(h, 0, s->current_picture.qscale_table[mb_xy]); |
2496 |
h->chroma_qp[1] = get_chroma_qp(h, 1, s->current_picture.qscale_table[mb_xy]); |
2497 |
|
2498 |
if (FRAME_MBAFF) {
|
2499 |
ff_h264_filter_mb (h, mb_x, mb_y, dest_y, dest_cb, dest_cr, linesize, uvlinesize); |
2500 |
} else {
|
2501 |
ff_h264_filter_mb_fast(h, mb_x, mb_y, dest_y, dest_cb, dest_cr, linesize, uvlinesize); |
2502 |
} |
2503 |
} |
2504 |
} |
2505 |
} |
2506 |
h->slice_type= old_slice_type; |
2507 |
s->mb_x= 0;
|
2508 |
s->mb_y= end_mb_y - FRAME_MBAFF; |
2509 |
h->chroma_qp[0] = get_chroma_qp(h, 0, s->qscale); |
2510 |
h->chroma_qp[1] = get_chroma_qp(h, 1, s->qscale); |
2511 |
} |
2512 |
|
2513 |
static void predict_field_decoding_flag(H264Context *h){ |
2514 |
MpegEncContext * const s = &h->s;
|
2515 |
const int mb_xy= s->mb_x + s->mb_y*s->mb_stride; |
2516 |
int mb_type = (h->slice_table[mb_xy-1] == h->slice_num) |
2517 |
? s->current_picture.mb_type[mb_xy-1]
|
2518 |
: (h->slice_table[mb_xy-s->mb_stride] == h->slice_num) |
2519 |
? s->current_picture.mb_type[mb_xy-s->mb_stride] |
2520 |
: 0;
|
2521 |
h->mb_mbaff = h->mb_field_decoding_flag = IS_INTERLACED(mb_type) ? 1 : 0; |
2522 |
} |
2523 |
|
2524 |
static int decode_slice(struct AVCodecContext *avctx, void *arg){ |
2525 |
H264Context *h = *(void**)arg;
|
2526 |
MpegEncContext * const s = &h->s;
|
2527 |
const int part_mask= s->partitioned_frame ? (AC_END|AC_ERROR) : 0x7F; |
2528 |
|
2529 |
s->mb_skip_run= -1;
|
2530 |
|
2531 |
h->is_complex = FRAME_MBAFF || s->picture_structure != PICT_FRAME || s->codec_id != CODEC_ID_H264 || |
2532 |
(CONFIG_GRAY && (s->flags&CODEC_FLAG_GRAY)); |
2533 |
|
2534 |
if( h->pps.cabac ) {
|
2535 |
/* realign */
|
2536 |
align_get_bits( &s->gb ); |
2537 |
|
2538 |
/* init cabac */
|
2539 |
ff_init_cabac_states( &h->cabac); |
2540 |
ff_init_cabac_decoder( &h->cabac, |
2541 |
s->gb.buffer + get_bits_count(&s->gb)/8,
|
2542 |
(get_bits_left(&s->gb) + 7)/8); |
2543 |
|
2544 |
ff_h264_init_cabac_states(h); |
2545 |
|
2546 |
for(;;){
|
2547 |
//START_TIMER
|
2548 |
int ret = ff_h264_decode_mb_cabac(h);
|
2549 |
int eos;
|
2550 |
//STOP_TIMER("decode_mb_cabac")
|
2551 |
|
2552 |
if(ret>=0) ff_h264_hl_decode_mb(h); |
2553 |
|
2554 |
if( ret >= 0 && FRAME_MBAFF ) { //FIXME optimal? or let mb_decode decode 16x32 ? |
2555 |
s->mb_y++; |
2556 |
|
2557 |
ret = ff_h264_decode_mb_cabac(h); |
2558 |
|
2559 |
if(ret>=0) ff_h264_hl_decode_mb(h); |
2560 |
s->mb_y--; |
2561 |
} |
2562 |
eos = get_cabac_terminate( &h->cabac ); |
2563 |
|
2564 |
if((s->workaround_bugs & FF_BUG_TRUNCATED) && h->cabac.bytestream > h->cabac.bytestream_end + 2){ |
2565 |
ff_er_add_slice(s, s->resync_mb_x, s->resync_mb_y, s->mb_x-1, s->mb_y, (AC_END|DC_END|MV_END)&part_mask);
|
2566 |
return 0; |
2567 |
} |
2568 |
if( ret < 0 || h->cabac.bytestream > h->cabac.bytestream_end + 2) { |
2569 |
av_log(h->s.avctx, AV_LOG_ERROR, "error while decoding MB %d %d, bytestream (%td)\n", s->mb_x, s->mb_y, h->cabac.bytestream_end - h->cabac.bytestream);
|
2570 |
ff_er_add_slice(s, s->resync_mb_x, s->resync_mb_y, s->mb_x, s->mb_y, (AC_ERROR|DC_ERROR|MV_ERROR)&part_mask); |
2571 |
return -1; |
2572 |
} |
2573 |
|
2574 |
if( ++s->mb_x >= s->mb_width ) {
|
2575 |
s->mb_x = 0;
|
2576 |
loop_filter(h); |
2577 |
ff_draw_horiz_band(s, 16*s->mb_y, 16); |
2578 |
++s->mb_y; |
2579 |
if(FIELD_OR_MBAFF_PICTURE) {
|
2580 |
++s->mb_y; |
2581 |
if(FRAME_MBAFF && s->mb_y < s->mb_height)
|
2582 |
predict_field_decoding_flag(h); |
2583 |
} |
2584 |
} |
2585 |
|
2586 |
if( eos || s->mb_y >= s->mb_height ) {
|
2587 |
tprintf(s->avctx, "slice end %d %d\n", get_bits_count(&s->gb), s->gb.size_in_bits);
|
2588 |
ff_er_add_slice(s, s->resync_mb_x, s->resync_mb_y, s->mb_x-1, s->mb_y, (AC_END|DC_END|MV_END)&part_mask);
|
2589 |
return 0; |
2590 |
} |
2591 |
} |
2592 |
|
2593 |
} else {
|
2594 |
for(;;){
|
2595 |
int ret = ff_h264_decode_mb_cavlc(h);
|
2596 |
|
2597 |
if(ret>=0) ff_h264_hl_decode_mb(h); |
2598 |
|
2599 |
if(ret>=0 && FRAME_MBAFF){ //FIXME optimal? or let mb_decode decode 16x32 ? |
2600 |
s->mb_y++; |
2601 |
ret = ff_h264_decode_mb_cavlc(h); |
2602 |
|
2603 |
if(ret>=0) ff_h264_hl_decode_mb(h); |
2604 |
s->mb_y--; |
2605 |
} |
2606 |
|
2607 |
if(ret<0){ |
2608 |
av_log(h->s.avctx, AV_LOG_ERROR, "error while decoding MB %d %d\n", s->mb_x, s->mb_y);
|
2609 |
ff_er_add_slice(s, s->resync_mb_x, s->resync_mb_y, s->mb_x, s->mb_y, (AC_ERROR|DC_ERROR|MV_ERROR)&part_mask); |
2610 |
|
2611 |
return -1; |
2612 |
} |
2613 |
|
2614 |
if(++s->mb_x >= s->mb_width){
|
2615 |
s->mb_x=0;
|
2616 |
loop_filter(h); |
2617 |
ff_draw_horiz_band(s, 16*s->mb_y, 16); |
2618 |
++s->mb_y; |
2619 |
if(FIELD_OR_MBAFF_PICTURE) {
|
2620 |
++s->mb_y; |
2621 |
if(FRAME_MBAFF && s->mb_y < s->mb_height)
|
2622 |
predict_field_decoding_flag(h); |
2623 |
} |
2624 |
if(s->mb_y >= s->mb_height){
|
2625 |
tprintf(s->avctx, "slice end %d %d\n", get_bits_count(&s->gb), s->gb.size_in_bits);
|
2626 |
|
2627 |
if(get_bits_count(&s->gb) == s->gb.size_in_bits ) {
|
2628 |
ff_er_add_slice(s, s->resync_mb_x, s->resync_mb_y, s->mb_x-1, s->mb_y, (AC_END|DC_END|MV_END)&part_mask);
|
2629 |
|
2630 |
return 0; |
2631 |
}else{
|
2632 |
ff_er_add_slice(s, s->resync_mb_x, s->resync_mb_y, s->mb_x, s->mb_y, (AC_END|DC_END|MV_END)&part_mask); |
2633 |
|
2634 |
return -1; |
2635 |
} |
2636 |
} |
2637 |
} |
2638 |
|
2639 |
if(get_bits_count(&s->gb) >= s->gb.size_in_bits && s->mb_skip_run<=0){ |
2640 |
tprintf(s->avctx, "slice end %d %d\n", get_bits_count(&s->gb), s->gb.size_in_bits);
|
2641 |
if(get_bits_count(&s->gb) == s->gb.size_in_bits ){
|
2642 |
ff_er_add_slice(s, s->resync_mb_x, s->resync_mb_y, s->mb_x-1, s->mb_y, (AC_END|DC_END|MV_END)&part_mask);
|
2643 |
|
2644 |
return 0; |
2645 |
}else{
|
2646 |
ff_er_add_slice(s, s->resync_mb_x, s->resync_mb_y, s->mb_x, s->mb_y, (AC_ERROR|DC_ERROR|MV_ERROR)&part_mask); |
2647 |
|
2648 |
return -1; |
2649 |
} |
2650 |
} |
2651 |
} |
2652 |
} |
2653 |
|
2654 |
#if 0
|
2655 |
for(;s->mb_y < s->mb_height; s->mb_y++){
|
2656 |
for(;s->mb_x < s->mb_width; s->mb_x++){
|
2657 |
int ret= decode_mb(h);
|
2658 |
|
2659 |
ff_h264_hl_decode_mb(h);
|
2660 |
|
2661 |
if(ret<0){
|
2662 |
av_log(s->avctx, AV_LOG_ERROR, "error while decoding MB %d %d\n", s->mb_x, s->mb_y);
|
2663 |
ff_er_add_slice(s, s->resync_mb_x, s->resync_mb_y, s->mb_x, s->mb_y, (AC_ERROR|DC_ERROR|MV_ERROR)&part_mask);
|
2664 |
|
2665 |
return -1;
|
2666 |
}
|
2667 |
|
2668 |
if(++s->mb_x >= s->mb_width){
|
2669 |
s->mb_x=0;
|
2670 |
if(++s->mb_y >= s->mb_height){
|
2671 |
if(get_bits_count(s->gb) == s->gb.size_in_bits){
|
2672 |
ff_er_add_slice(s, s->resync_mb_x, s->resync_mb_y, s->mb_x-1, s->mb_y, (AC_END|DC_END|MV_END)&part_mask);
|
2673 |
|
2674 |
return 0;
|
2675 |
}else{
|
2676 |
ff_er_add_slice(s, s->resync_mb_x, s->resync_mb_y, s->mb_x, s->mb_y, (AC_END|DC_END|MV_END)&part_mask);
|
2677 |
|
2678 |
return -1;
|
2679 |
}
|
2680 |
}
|
2681 |
}
|
2682 |
|
2683 |
if(get_bits_count(s->?gb) >= s->gb?.size_in_bits){
|
2684 |
if(get_bits_count(s->gb) == s->gb.size_in_bits){
|
2685 |
ff_er_add_slice(s, s->resync_mb_x, s->resync_mb_y, s->mb_x-1, s->mb_y, (AC_END|DC_END|MV_END)&part_mask);
|
2686 |
|
2687 |
return 0;
|
2688 |
}else{
|
2689 |
ff_er_add_slice(s, s->resync_mb_x, s->resync_mb_y, s->mb_x, s->mb_y, (AC_ERROR|DC_ERROR|MV_ERROR)&part_mask);
|
2690 |
|
2691 |
return -1;
|
2692 |
}
|
2693 |
}
|
2694 |
}
|
2695 |
s->mb_x=0;
|
2696 |
ff_draw_horiz_band(s, 16*s->mb_y, 16);
|
2697 |
}
|
2698 |
#endif
|
2699 |
return -1; //not reached |
2700 |
} |
2701 |
|
2702 |
/**
|
2703 |
* Call decode_slice() for each context.
|
2704 |
*
|
2705 |
* @param h h264 master context
|
2706 |
* @param context_count number of contexts to execute
|
2707 |
*/
|
2708 |
static void execute_decode_slices(H264Context *h, int context_count){ |
2709 |
MpegEncContext * const s = &h->s;
|
2710 |
AVCodecContext * const avctx= s->avctx;
|
2711 |
H264Context *hx; |
2712 |
int i;
|
2713 |
|
2714 |
if (s->avctx->hwaccel)
|
2715 |
return;
|
2716 |
if(s->avctx->codec->capabilities&CODEC_CAP_HWACCEL_VDPAU)
|
2717 |
return;
|
2718 |
if(context_count == 1) { |
2719 |
decode_slice(avctx, &h); |
2720 |
} else {
|
2721 |
for(i = 1; i < context_count; i++) { |
2722 |
hx = h->thread_context[i]; |
2723 |
hx->s.error_recognition = avctx->error_recognition; |
2724 |
hx->s.error_count = 0;
|
2725 |
} |
2726 |
|
2727 |
avctx->execute(avctx, (void *)decode_slice,
|
2728 |
h->thread_context, NULL, context_count, sizeof(void*)); |
2729 |
|
2730 |
/* pull back stuff from slices to master context */
|
2731 |
hx = h->thread_context[context_count - 1];
|
2732 |
s->mb_x = hx->s.mb_x; |
2733 |
s->mb_y = hx->s.mb_y; |
2734 |
s->dropable = hx->s.dropable; |
2735 |
s->picture_structure = hx->s.picture_structure; |
2736 |
for(i = 1; i < context_count; i++) |
2737 |
h->s.error_count += h->thread_context[i]->s.error_count; |
2738 |
} |
2739 |
} |
2740 |
|
2741 |
|
2742 |
static int decode_nal_units(H264Context *h, const uint8_t *buf, int buf_size){ |
2743 |
MpegEncContext * const s = &h->s;
|
2744 |
AVCodecContext * const avctx= s->avctx;
|
2745 |
int buf_index=0; |
2746 |
H264Context *hx; ///< thread context
|
2747 |
int context_count = 0; |
2748 |
int next_avc= h->is_avc ? 0 : buf_size; |
2749 |
|
2750 |
h->max_contexts = avctx->thread_count; |
2751 |
#if 0
|
2752 |
int i;
|
2753 |
for(i=0; i<50; i++){
|
2754 |
av_log(NULL, AV_LOG_ERROR,"%02X ", buf[i]);
|
2755 |
}
|
2756 |
#endif
|
2757 |
if(!(s->flags2 & CODEC_FLAG2_CHUNKS)){
|
2758 |
h->current_slice = 0;
|
2759 |
if (!s->first_field)
|
2760 |
s->current_picture_ptr= NULL;
|
2761 |
ff_h264_reset_sei(h); |
2762 |
} |
2763 |
|
2764 |
for(;;){
|
2765 |
int consumed;
|
2766 |
int dst_length;
|
2767 |
int bit_length;
|
2768 |
const uint8_t *ptr;
|
2769 |
int i, nalsize = 0; |
2770 |
int err;
|
2771 |
|
2772 |
if(buf_index >= next_avc) {
|
2773 |
if(buf_index >= buf_size) break; |
2774 |
nalsize = 0;
|
2775 |
for(i = 0; i < h->nal_length_size; i++) |
2776 |
nalsize = (nalsize << 8) | buf[buf_index++];
|
2777 |
if(nalsize <= 0 || nalsize > buf_size - buf_index){ |
2778 |
av_log(h->s.avctx, AV_LOG_ERROR, "AVC: nal size %d\n", nalsize);
|
2779 |
break;
|
2780 |
} |
2781 |
next_avc= buf_index + nalsize; |
2782 |
} else {
|
2783 |
// start code prefix search
|
2784 |
for(; buf_index + 3 < next_avc; buf_index++){ |
2785 |
// This should always succeed in the first iteration.
|
2786 |
if(buf[buf_index] == 0 && buf[buf_index+1] == 0 && buf[buf_index+2] == 1) |
2787 |
break;
|
2788 |
} |
2789 |
|
2790 |
if(buf_index+3 >= buf_size) break; |
2791 |
|
2792 |
buf_index+=3;
|
2793 |
if(buf_index >= next_avc) continue; |
2794 |
} |
2795 |
|
2796 |
hx = h->thread_context[context_count]; |
2797 |
|
2798 |
ptr= ff_h264_decode_nal(hx, buf + buf_index, &dst_length, &consumed, next_avc - buf_index); |
2799 |
if (ptr==NULL || dst_length < 0){ |
2800 |
return -1; |
2801 |
} |
2802 |
i= buf_index + consumed; |
2803 |
if((s->workaround_bugs & FF_BUG_AUTODETECT) && i+3<next_avc && |
2804 |
buf[i]==0x00 && buf[i+1]==0x00 && buf[i+2]==0x01 && buf[i+3]==0xE0) |
2805 |
s->workaround_bugs |= FF_BUG_TRUNCATED; |
2806 |
|
2807 |
if(!(s->workaround_bugs & FF_BUG_TRUNCATED)){
|
2808 |
while(ptr[dst_length - 1] == 0 && dst_length > 0) |
2809 |
dst_length--; |
2810 |
} |
2811 |
bit_length= !dst_length ? 0 : (8*dst_length - ff_h264_decode_rbsp_trailing(h, ptr + dst_length - 1)); |
2812 |
|
2813 |
if(s->avctx->debug&FF_DEBUG_STARTCODE){
|
2814 |
av_log(h->s.avctx, AV_LOG_DEBUG, "NAL %d at %d/%d length %d\n", hx->nal_unit_type, buf_index, buf_size, dst_length);
|
2815 |
} |
2816 |
|
2817 |
if (h->is_avc && (nalsize != consumed) && nalsize){
|
2818 |
av_log(h->s.avctx, AV_LOG_DEBUG, "AVC: Consumed only %d bytes instead of %d\n", consumed, nalsize);
|
2819 |
} |
2820 |
|
2821 |
buf_index += consumed; |
2822 |
|
2823 |
//FIXME do not discard SEI id
|
2824 |
if(
|
2825 |
#if FF_API_HURRY_UP
|
2826 |
(s->hurry_up == 1 && h->nal_ref_idc == 0) || |
2827 |
#endif
|
2828 |
(avctx->skip_frame >= AVDISCARD_NONREF && h->nal_ref_idc == 0))
|
2829 |
continue;
|
2830 |
|
2831 |
again:
|
2832 |
err = 0;
|
2833 |
switch(hx->nal_unit_type){
|
2834 |
case NAL_IDR_SLICE:
|
2835 |
if (h->nal_unit_type != NAL_IDR_SLICE) {
|
2836 |
av_log(h->s.avctx, AV_LOG_ERROR, "Invalid mix of idr and non-idr slices");
|
2837 |
return -1; |
2838 |
} |
2839 |
idr(h); //FIXME ensure we don't loose some frames if there is reordering
|
2840 |
case NAL_SLICE:
|
2841 |
init_get_bits(&hx->s.gb, ptr, bit_length); |
2842 |
hx->intra_gb_ptr= |
2843 |
hx->inter_gb_ptr= &hx->s.gb; |
2844 |
hx->s.data_partitioning = 0;
|
2845 |
|
2846 |
if((err = decode_slice_header(hx, h)))
|
2847 |
break;
|
2848 |
|
2849 |
if (h->current_slice == 1) { |
2850 |
if (s->avctx->hwaccel && s->avctx->hwaccel->start_frame(s->avctx, NULL, 0) < 0) |
2851 |
return -1; |
2852 |
if(CONFIG_H264_VDPAU_DECODER && s->avctx->codec->capabilities&CODEC_CAP_HWACCEL_VDPAU)
|
2853 |
ff_vdpau_h264_picture_start(s); |
2854 |
} |
2855 |
|
2856 |
s->current_picture_ptr->key_frame |= |
2857 |
(hx->nal_unit_type == NAL_IDR_SLICE) || |
2858 |
(h->sei_recovery_frame_cnt >= 0);
|
2859 |
if(hx->redundant_pic_count==0 |
2860 |
#if FF_API_HURRY_UP
|
2861 |
&& hx->s.hurry_up < 5
|
2862 |
#endif
|
2863 |
&& (avctx->skip_frame < AVDISCARD_NONREF || hx->nal_ref_idc) |
2864 |
&& (avctx->skip_frame < AVDISCARD_BIDIR || hx->slice_type_nos!=FF_B_TYPE) |
2865 |
&& (avctx->skip_frame < AVDISCARD_NONKEY || hx->slice_type_nos==FF_I_TYPE) |
2866 |
&& avctx->skip_frame < AVDISCARD_ALL){ |
2867 |
if(avctx->hwaccel) {
|
2868 |
if (avctx->hwaccel->decode_slice(avctx, &buf[buf_index - consumed], consumed) < 0) |
2869 |
return -1; |
2870 |
}else
|
2871 |
if(CONFIG_H264_VDPAU_DECODER && s->avctx->codec->capabilities&CODEC_CAP_HWACCEL_VDPAU){
|
2872 |
static const uint8_t start_code[] = {0x00, 0x00, 0x01}; |
2873 |
ff_vdpau_add_data_chunk(s, start_code, sizeof(start_code));
|
2874 |
ff_vdpau_add_data_chunk(s, &buf[buf_index - consumed], consumed ); |
2875 |
}else
|
2876 |
context_count++; |
2877 |
} |
2878 |
break;
|
2879 |
case NAL_DPA:
|
2880 |
init_get_bits(&hx->s.gb, ptr, bit_length); |
2881 |
hx->intra_gb_ptr= |
2882 |
hx->inter_gb_ptr= NULL;
|
2883 |
|
2884 |
if ((err = decode_slice_header(hx, h)) < 0) |
2885 |
break;
|
2886 |
|
2887 |
hx->s.data_partitioning = 1;
|
2888 |
|
2889 |
break;
|
2890 |
case NAL_DPB:
|
2891 |
init_get_bits(&hx->intra_gb, ptr, bit_length); |
2892 |
hx->intra_gb_ptr= &hx->intra_gb; |
2893 |
break;
|
2894 |
case NAL_DPC:
|
2895 |
init_get_bits(&hx->inter_gb, ptr, bit_length); |
2896 |
hx->inter_gb_ptr= &hx->inter_gb; |
2897 |
|
2898 |
if(hx->redundant_pic_count==0 && hx->intra_gb_ptr && hx->s.data_partitioning |
2899 |
&& s->context_initialized |
2900 |
#if FF_API_HURRY_UP
|
2901 |
&& s->hurry_up < 5
|
2902 |
#endif
|
2903 |
&& (avctx->skip_frame < AVDISCARD_NONREF || hx->nal_ref_idc) |
2904 |
&& (avctx->skip_frame < AVDISCARD_BIDIR || hx->slice_type_nos!=FF_B_TYPE) |
2905 |
&& (avctx->skip_frame < AVDISCARD_NONKEY || hx->slice_type_nos==FF_I_TYPE) |
2906 |
&& avctx->skip_frame < AVDISCARD_ALL) |
2907 |
context_count++; |
2908 |
break;
|
2909 |
case NAL_SEI:
|
2910 |
init_get_bits(&s->gb, ptr, bit_length); |
2911 |
ff_h264_decode_sei(h); |
2912 |
break;
|
2913 |
case NAL_SPS:
|
2914 |
init_get_bits(&s->gb, ptr, bit_length); |
2915 |
ff_h264_decode_seq_parameter_set(h); |
2916 |
|
2917 |
if(s->flags& CODEC_FLAG_LOW_DELAY)
|
2918 |
s->low_delay=1;
|
2919 |
|
2920 |
if(avctx->has_b_frames < 2) |
2921 |
avctx->has_b_frames= !s->low_delay; |
2922 |
break;
|
2923 |
case NAL_PPS:
|
2924 |
init_get_bits(&s->gb, ptr, bit_length); |
2925 |
|
2926 |
ff_h264_decode_picture_parameter_set(h, bit_length); |
2927 |
|
2928 |
break;
|
2929 |
case NAL_AUD:
|
2930 |
case NAL_END_SEQUENCE:
|
2931 |
case NAL_END_STREAM:
|
2932 |
case NAL_FILLER_DATA:
|
2933 |
case NAL_SPS_EXT:
|
2934 |
case NAL_AUXILIARY_SLICE:
|
2935 |
break;
|
2936 |
default:
|
2937 |
av_log(avctx, AV_LOG_DEBUG, "Unknown NAL code: %d (%d bits)\n", hx->nal_unit_type, bit_length);
|
2938 |
} |
2939 |
|
2940 |
if(context_count == h->max_contexts) {
|
2941 |
execute_decode_slices(h, context_count); |
2942 |
context_count = 0;
|
2943 |
} |
2944 |
|
2945 |
if (err < 0) |
2946 |
av_log(h->s.avctx, AV_LOG_ERROR, "decode_slice_header error\n");
|
2947 |
else if(err == 1) { |
2948 |
/* Slice could not be decoded in parallel mode, copy down
|
2949 |
* NAL unit stuff to context 0 and restart. Note that
|
2950 |
* rbsp_buffer is not transferred, but since we no longer
|
2951 |
* run in parallel mode this should not be an issue. */
|
2952 |
h->nal_unit_type = hx->nal_unit_type; |
2953 |
h->nal_ref_idc = hx->nal_ref_idc; |
2954 |
hx = h; |
2955 |
goto again;
|
2956 |
} |
2957 |
} |
2958 |
if(context_count)
|
2959 |
execute_decode_slices(h, context_count); |
2960 |
return buf_index;
|
2961 |
} |
2962 |
|
2963 |
/**
|
2964 |
* returns the number of bytes consumed for building the current frame
|
2965 |
*/
|
2966 |
static int get_consumed_bytes(MpegEncContext *s, int pos, int buf_size){ |
2967 |
if(pos==0) pos=1; //avoid infinite loops (i doubt that is needed but ...) |
2968 |
if(pos+10>buf_size) pos=buf_size; // oops ;) |
2969 |
|
2970 |
return pos;
|
2971 |
} |
2972 |
|
2973 |
static int decode_frame(AVCodecContext *avctx, |
2974 |
void *data, int *data_size, |
2975 |
AVPacket *avpkt) |
2976 |
{ |
2977 |
const uint8_t *buf = avpkt->data;
|
2978 |
int buf_size = avpkt->size;
|
2979 |
H264Context *h = avctx->priv_data; |
2980 |
MpegEncContext *s = &h->s; |
2981 |
AVFrame *pict = data; |
2982 |
int buf_index;
|
2983 |
|
2984 |
s->flags= avctx->flags; |
2985 |
s->flags2= avctx->flags2; |
2986 |
|
2987 |
/* end of stream, output what is still in the buffers */
|
2988 |
out:
|
2989 |
if (buf_size == 0) { |
2990 |
Picture *out; |
2991 |
int i, out_idx;
|
2992 |
|
2993 |
//FIXME factorize this with the output code below
|
2994 |
out = h->delayed_pic[0];
|
2995 |
out_idx = 0;
|
2996 |
for(i=1; h->delayed_pic[i] && !h->delayed_pic[i]->key_frame && !h->delayed_pic[i]->mmco_reset; i++) |
2997 |
if(h->delayed_pic[i]->poc < out->poc){
|
2998 |
out = h->delayed_pic[i]; |
2999 |
out_idx = i; |
3000 |
} |
3001 |
|
3002 |
for(i=out_idx; h->delayed_pic[i]; i++)
|
3003 |
h->delayed_pic[i] = h->delayed_pic[i+1];
|
3004 |
|
3005 |
if(out){
|
3006 |
*data_size = sizeof(AVFrame);
|
3007 |
*pict= *(AVFrame*)out; |
3008 |
} |
3009 |
|
3010 |
return 0; |
3011 |
} |
3012 |
|
3013 |
buf_index=decode_nal_units(h, buf, buf_size); |
3014 |
if(buf_index < 0) |
3015 |
return -1; |
3016 |
|
3017 |
if (!s->current_picture_ptr && h->nal_unit_type == NAL_END_SEQUENCE) {
|
3018 |
buf_size = 0;
|
3019 |
goto out;
|
3020 |
} |
3021 |
|
3022 |
if(!(s->flags2 & CODEC_FLAG2_CHUNKS) && !s->current_picture_ptr){
|
3023 |
if (avctx->skip_frame >= AVDISCARD_NONREF
|
3024 |
#if FF_API_HURRY_UP
|
3025 |
|| s->hurry_up |
3026 |
#endif
|
3027 |
) |
3028 |
return 0; |
3029 |
av_log(avctx, AV_LOG_ERROR, "no frame!\n");
|
3030 |
return -1; |
3031 |
} |
3032 |
|
3033 |
if(!(s->flags2 & CODEC_FLAG2_CHUNKS) || (s->mb_y >= s->mb_height && s->mb_height)){
|
3034 |
Picture *out = s->current_picture_ptr; |
3035 |
Picture *cur = s->current_picture_ptr; |
3036 |
int i, pics, out_of_order, out_idx;
|
3037 |
|
3038 |
field_end(h); |
3039 |
|
3040 |
if (cur->field_poc[0]==INT_MAX || cur->field_poc[1]==INT_MAX) { |
3041 |
/* Wait for second field. */
|
3042 |
*data_size = 0;
|
3043 |
|
3044 |
} else {
|
3045 |
cur->interlaced_frame = 0;
|
3046 |
cur->repeat_pict = 0;
|
3047 |
|
3048 |
/* Signal interlacing information externally. */
|
3049 |
/* Prioritize picture timing SEI information over used decoding process if it exists. */
|
3050 |
|
3051 |
if(h->sps.pic_struct_present_flag){
|
3052 |
switch (h->sei_pic_struct)
|
3053 |
{ |
3054 |
case SEI_PIC_STRUCT_FRAME:
|
3055 |
break;
|
3056 |
case SEI_PIC_STRUCT_TOP_FIELD:
|
3057 |
case SEI_PIC_STRUCT_BOTTOM_FIELD:
|
3058 |
cur->interlaced_frame = 1;
|
3059 |
break;
|
3060 |
case SEI_PIC_STRUCT_TOP_BOTTOM:
|
3061 |
case SEI_PIC_STRUCT_BOTTOM_TOP:
|
3062 |
if (FIELD_OR_MBAFF_PICTURE)
|
3063 |
cur->interlaced_frame = 1;
|
3064 |
else
|
3065 |
// try to flag soft telecine progressive
|
3066 |
cur->interlaced_frame = h->prev_interlaced_frame; |
3067 |
break;
|
3068 |
case SEI_PIC_STRUCT_TOP_BOTTOM_TOP:
|
3069 |
case SEI_PIC_STRUCT_BOTTOM_TOP_BOTTOM:
|
3070 |
// Signal the possibility of telecined film externally (pic_struct 5,6)
|
3071 |
// From these hints, let the applications decide if they apply deinterlacing.
|
3072 |
cur->repeat_pict = 1;
|
3073 |
break;
|
3074 |
case SEI_PIC_STRUCT_FRAME_DOUBLING:
|
3075 |
// Force progressive here, as doubling interlaced frame is a bad idea.
|
3076 |
cur->repeat_pict = 2;
|
3077 |
break;
|
3078 |
case SEI_PIC_STRUCT_FRAME_TRIPLING:
|
3079 |
cur->repeat_pict = 4;
|
3080 |
break;
|
3081 |
} |
3082 |
|
3083 |
if ((h->sei_ct_type & 3) && h->sei_pic_struct <= SEI_PIC_STRUCT_BOTTOM_TOP) |
3084 |
cur->interlaced_frame = (h->sei_ct_type & (1<<1)) != 0; |
3085 |
}else{
|
3086 |
/* Derive interlacing flag from used decoding process. */
|
3087 |
cur->interlaced_frame = FIELD_OR_MBAFF_PICTURE; |
3088 |
} |
3089 |
h->prev_interlaced_frame = cur->interlaced_frame; |
3090 |
|
3091 |
if (cur->field_poc[0] != cur->field_poc[1]){ |
3092 |
/* Derive top_field_first from field pocs. */
|
3093 |
cur->top_field_first = cur->field_poc[0] < cur->field_poc[1]; |
3094 |
}else{
|
3095 |
if(cur->interlaced_frame || h->sps.pic_struct_present_flag){
|
3096 |
/* Use picture timing SEI information. Even if it is a information of a past frame, better than nothing. */
|
3097 |
if(h->sei_pic_struct == SEI_PIC_STRUCT_TOP_BOTTOM
|
3098 |
|| h->sei_pic_struct == SEI_PIC_STRUCT_TOP_BOTTOM_TOP) |
3099 |
cur->top_field_first = 1;
|
3100 |
else
|
3101 |
cur->top_field_first = 0;
|
3102 |
}else{
|
3103 |
/* Most likely progressive */
|
3104 |
cur->top_field_first = 0;
|
3105 |
} |
3106 |
} |
3107 |
|
3108 |
//FIXME do something with unavailable reference frames
|
3109 |
|
3110 |
/* Sort B-frames into display order */
|
3111 |
|
3112 |
if(h->sps.bitstream_restriction_flag
|
3113 |
&& s->avctx->has_b_frames < h->sps.num_reorder_frames){ |
3114 |
s->avctx->has_b_frames = h->sps.num_reorder_frames; |
3115 |
s->low_delay = 0;
|
3116 |
} |
3117 |
|
3118 |
if( s->avctx->strict_std_compliance >= FF_COMPLIANCE_STRICT
|
3119 |
&& !h->sps.bitstream_restriction_flag){ |
3120 |
s->avctx->has_b_frames= MAX_DELAYED_PIC_COUNT; |
3121 |
s->low_delay= 0;
|
3122 |
} |
3123 |
|
3124 |
pics = 0;
|
3125 |
while(h->delayed_pic[pics]) pics++;
|
3126 |
|
3127 |
assert(pics <= MAX_DELAYED_PIC_COUNT); |
3128 |
|
3129 |
h->delayed_pic[pics++] = cur; |
3130 |
if(cur->reference == 0) |
3131 |
cur->reference = DELAYED_PIC_REF; |
3132 |
|
3133 |
out = h->delayed_pic[0];
|
3134 |
out_idx = 0;
|
3135 |
for(i=1; h->delayed_pic[i] && !h->delayed_pic[i]->key_frame && !h->delayed_pic[i]->mmco_reset; i++) |
3136 |
if(h->delayed_pic[i]->poc < out->poc){
|
3137 |
out = h->delayed_pic[i]; |
3138 |
out_idx = i; |
3139 |
} |
3140 |
if(s->avctx->has_b_frames == 0 && (h->delayed_pic[0]->key_frame || h->delayed_pic[0]->mmco_reset)) |
3141 |
h->outputed_poc= INT_MIN; |
3142 |
out_of_order = out->poc < h->outputed_poc; |
3143 |
|
3144 |
if(h->sps.bitstream_restriction_flag && s->avctx->has_b_frames >= h->sps.num_reorder_frames)
|
3145 |
{ } |
3146 |
else if((out_of_order && pics-1 == s->avctx->has_b_frames && s->avctx->has_b_frames < MAX_DELAYED_PIC_COUNT) |
3147 |
|| (s->low_delay && |
3148 |
((h->outputed_poc != INT_MIN && out->poc > h->outputed_poc + 2)
|
3149 |
|| cur->pict_type == FF_B_TYPE))) |
3150 |
{ |
3151 |
s->low_delay = 0;
|
3152 |
s->avctx->has_b_frames++; |
3153 |
} |
3154 |
|
3155 |
if(out_of_order || pics > s->avctx->has_b_frames){
|
3156 |
out->reference &= ~DELAYED_PIC_REF; |
3157 |
for(i=out_idx; h->delayed_pic[i]; i++)
|
3158 |
h->delayed_pic[i] = h->delayed_pic[i+1];
|
3159 |
} |
3160 |
if(!out_of_order && pics > s->avctx->has_b_frames){
|
3161 |
*data_size = sizeof(AVFrame);
|
3162 |
|
3163 |
if(out_idx==0 && h->delayed_pic[0] && (h->delayed_pic[0]->key_frame || h->delayed_pic[0]->mmco_reset)) { |
3164 |
h->outputed_poc = INT_MIN; |
3165 |
} else
|
3166 |
h->outputed_poc = out->poc; |
3167 |
*pict= *(AVFrame*)out; |
3168 |
}else{
|
3169 |
av_log(avctx, AV_LOG_DEBUG, "no picture\n");
|
3170 |
} |
3171 |
} |
3172 |
} |
3173 |
|
3174 |
assert(pict->data[0] || !*data_size);
|
3175 |
ff_print_debug_info(s, pict); |
3176 |
//printf("out %d\n", (int)pict->data[0]);
|
3177 |
|
3178 |
return get_consumed_bytes(s, buf_index, buf_size);
|
3179 |
} |
3180 |
#if 0
|
3181 |
static inline void fill_mb_avail(H264Context *h){
|
3182 |
MpegEncContext * const s = &h->s;
|
3183 |
const int mb_xy= s->mb_x + s->mb_y*s->mb_stride;
|
3184 |
|
3185 |
if(s->mb_y){
|
3186 |
h->mb_avail[0]= s->mb_x && h->slice_table[mb_xy - s->mb_stride - 1] == h->slice_num;
|
3187 |
h->mb_avail[1]= h->slice_table[mb_xy - s->mb_stride ] == h->slice_num;
|
3188 |
h->mb_avail[2]= s->mb_x+1 < s->mb_width && h->slice_table[mb_xy - s->mb_stride + 1] == h->slice_num;
|
3189 |
}else{
|
3190 |
h->mb_avail[0]=
|
3191 |
h->mb_avail[1]=
|
3192 |
h->mb_avail[2]= 0;
|
3193 |
}
|
3194 |
h->mb_avail[3]= s->mb_x && h->slice_table[mb_xy - 1] == h->slice_num;
|
3195 |
h->mb_avail[4]= 1; //FIXME move out
|
3196 |
h->mb_avail[5]= 0; //FIXME move out
|
3197 |
}
|
3198 |
#endif
|
3199 |
|
3200 |
#ifdef TEST
|
3201 |
#undef printf
|
3202 |
#undef random
|
3203 |
#define COUNT 8000 |
3204 |
#define SIZE (COUNT*40) |
3205 |
int main(void){ |
3206 |
int i;
|
3207 |
uint8_t temp[SIZE]; |
3208 |
PutBitContext pb; |
3209 |
GetBitContext gb; |
3210 |
// int int_temp[10000];
|
3211 |
DSPContext dsp; |
3212 |
AVCodecContext avctx; |
3213 |
|
3214 |
dsputil_init(&dsp, &avctx); |
3215 |
|
3216 |
init_put_bits(&pb, temp, SIZE); |
3217 |
printf("testing unsigned exp golomb\n");
|
3218 |
for(i=0; i<COUNT; i++){ |
3219 |
START_TIMER |
3220 |
set_ue_golomb(&pb, i); |
3221 |
STOP_TIMER("set_ue_golomb");
|
3222 |
} |
3223 |
flush_put_bits(&pb); |
3224 |
|
3225 |
init_get_bits(&gb, temp, 8*SIZE);
|
3226 |
for(i=0; i<COUNT; i++){ |
3227 |
int j, s;
|
3228 |
|
3229 |
s= show_bits(&gb, 24);
|
3230 |
|
3231 |
START_TIMER |
3232 |
j= get_ue_golomb(&gb); |
3233 |
if(j != i){
|
3234 |
printf("mismatch! at %d (%d should be %d) bits:%6X\n", i, j, i, s);
|
3235 |
// return -1;
|
3236 |
} |
3237 |
STOP_TIMER("get_ue_golomb");
|
3238 |
} |
3239 |
|
3240 |
|
3241 |
init_put_bits(&pb, temp, SIZE); |
3242 |
printf("testing signed exp golomb\n");
|
3243 |
for(i=0; i<COUNT; i++){ |
3244 |
START_TIMER |
3245 |
set_se_golomb(&pb, i - COUNT/2);
|
3246 |
STOP_TIMER("set_se_golomb");
|
3247 |
} |
3248 |
flush_put_bits(&pb); |
3249 |
|
3250 |
init_get_bits(&gb, temp, 8*SIZE);
|
3251 |
for(i=0; i<COUNT; i++){ |
3252 |
int j, s;
|
3253 |
|
3254 |
s= show_bits(&gb, 24);
|
3255 |
|
3256 |
START_TIMER |
3257 |
j= get_se_golomb(&gb); |
3258 |
if(j != i - COUNT/2){ |
3259 |
printf("mismatch! at %d (%d should be %d) bits:%6X\n", i, j, i, s);
|
3260 |
// return -1;
|
3261 |
} |
3262 |
STOP_TIMER("get_se_golomb");
|
3263 |
} |
3264 |
|
3265 |
#if 0
|
3266 |
printf("testing 4x4 (I)DCT\n");
|
3267 |
|
3268 |
DCTELEM block[16];
|
3269 |
uint8_t src[16], ref[16];
|
3270 |
uint64_t error= 0, max_error=0;
|
3271 |
|
3272 |
for(i=0; i<COUNT; i++){
|
3273 |
int j;
|
3274 |
// printf("%d %d %d\n", r1, r2, (r2-r1)*16);
|
3275 |
for(j=0; j<16; j++){
|
3276 |
ref[j]= random()%255;
|
3277 |
src[j]= random()%255;
|
3278 |
}
|
3279 |
|
3280 |
h264_diff_dct_c(block, src, ref, 4);
|
3281 |
|
3282 |
//normalize
|
3283 |
for(j=0; j<16; j++){
|
3284 |
// printf("%d ", block[j]);
|
3285 |
block[j]= block[j]*4;
|
3286 |
if(j&1) block[j]= (block[j]*4 + 2)/5;
|
3287 |
if(j&4) block[j]= (block[j]*4 + 2)/5;
|
3288 |
}
|
3289 |
// printf("\n");
|
3290 |
|
3291 |
h->h264dsp.h264_idct_add(ref, block, 4);
|
3292 |
/* for(j=0; j<16; j++){
|
3293 |
printf("%d ", ref[j]);
|
3294 |
}
|
3295 |
printf("\n");*/
|
3296 |
|
3297 |
for(j=0; j<16; j++){
|
3298 |
int diff= FFABS(src[j] - ref[j]);
|
3299 |
|
3300 |
error+= diff*diff;
|
3301 |
max_error= FFMAX(max_error, diff);
|
3302 |
}
|
3303 |
}
|
3304 |
printf("error=%f max_error=%d\n", ((float)error)/COUNT/16, (int)max_error );
|
3305 |
printf("testing quantizer\n");
|
3306 |
for(qp=0; qp<52; qp++){
|
3307 |
for(i=0; i<16; i++)
|
3308 |
src1_block[i]= src2_block[i]= random()%255;
|
3309 |
|
3310 |
}
|
3311 |
printf("Testing NAL layer\n");
|
3312 |
|
3313 |
uint8_t bitstream[COUNT];
|
3314 |
uint8_t nal[COUNT*2];
|
3315 |
H264Context h;
|
3316 |
memset(&h, 0, sizeof(H264Context));
|
3317 |
|
3318 |
for(i=0; i<COUNT; i++){
|
3319 |
int zeros= i;
|
3320 |
int nal_length;
|
3321 |
int consumed;
|
3322 |
int out_length;
|
3323 |
uint8_t *out;
|
3324 |
int j;
|
3325 |
|
3326 |
for(j=0; j<COUNT; j++){
|
3327 |
bitstream[j]= (random() % 255) + 1;
|
3328 |
}
|
3329 |
|
3330 |
for(j=0; j<zeros; j++){
|
3331 |
int pos= random() % COUNT;
|
3332 |
while(bitstream[pos] == 0){
|
3333 |
pos++;
|
3334 |
pos %= COUNT;
|
3335 |
}
|
3336 |
bitstream[pos]=0;
|
3337 |
}
|
3338 |
|
3339 |
START_TIMER
|
3340 |
|
3341 |
nal_length= encode_nal(&h, nal, bitstream, COUNT, COUNT*2);
|
3342 |
if(nal_length<0){
|
3343 |
printf("encoding failed\n");
|
3344 |
return -1;
|
3345 |
}
|
3346 |
|
3347 |
out= ff_h264_decode_nal(&h, nal, &out_length, &consumed, nal_length);
|
3348 |
|
3349 |
STOP_TIMER("NAL")
|
3350 |
|
3351 |
if(out_length != COUNT){
|
3352 |
printf("incorrect length %d %d\n", out_length, COUNT);
|
3353 |
return -1;
|
3354 |
}
|
3355 |
|
3356 |
if(consumed != nal_length){
|
3357 |
printf("incorrect consumed length %d %d\n", nal_length, consumed);
|
3358 |
return -1;
|
3359 |
}
|
3360 |
|
3361 |
if(memcmp(bitstream, out, COUNT)){
|
3362 |
printf("mismatch\n");
|
3363 |
return -1;
|
3364 |
}
|
3365 |
}
|
3366 |
#endif
|
3367 |
|
3368 |
printf("Testing RBSP\n");
|
3369 |
|
3370 |
|
3371 |
return 0; |
3372 |
} |
3373 |
#endif /* TEST */ |
3374 |
|
3375 |
|
3376 |
av_cold void ff_h264_free_context(H264Context *h)
|
3377 |
{ |
3378 |
int i;
|
3379 |
|
3380 |
free_tables(h, 1); //FIXME cleanup init stuff perhaps |
3381 |
|
3382 |
for(i = 0; i < MAX_SPS_COUNT; i++) |
3383 |
av_freep(h->sps_buffers + i); |
3384 |
|
3385 |
for(i = 0; i < MAX_PPS_COUNT; i++) |
3386 |
av_freep(h->pps_buffers + i); |
3387 |
} |
3388 |
|
3389 |
av_cold int ff_h264_decode_end(AVCodecContext *avctx)
|
3390 |
{ |
3391 |
H264Context *h = avctx->priv_data; |
3392 |
MpegEncContext *s = &h->s; |
3393 |
|
3394 |
ff_h264_free_context(h); |
3395 |
|
3396 |
MPV_common_end(s); |
3397 |
|
3398 |
// memset(h, 0, sizeof(H264Context));
|
3399 |
|
3400 |
return 0; |
3401 |
} |
3402 |
|
3403 |
static const AVProfile profiles[] = { |
3404 |
{ FF_PROFILE_H264_BASELINE, "Baseline" },
|
3405 |
{ FF_PROFILE_H264_CONSTRAINED_BASELINE, "Constrained Baseline" },
|
3406 |
{ FF_PROFILE_H264_MAIN, "Main" },
|
3407 |
{ FF_PROFILE_H264_EXTENDED, "Extended" },
|
3408 |
{ FF_PROFILE_H264_HIGH, "High" },
|
3409 |
{ FF_PROFILE_H264_HIGH_10, "High 10" },
|
3410 |
{ FF_PROFILE_H264_HIGH_10_INTRA, "High 10 Intra" },
|
3411 |
{ FF_PROFILE_H264_HIGH_422, "High 4:2:2" },
|
3412 |
{ FF_PROFILE_H264_HIGH_422_INTRA, "High 4:2:2 Intra" },
|
3413 |
{ FF_PROFILE_H264_HIGH_444, "High 4:4:4" },
|
3414 |
{ FF_PROFILE_H264_HIGH_444_PREDICTIVE, "High 4:4:4 Predictive" },
|
3415 |
{ FF_PROFILE_H264_HIGH_444_INTRA, "High 4:4:4 Intra" },
|
3416 |
{ FF_PROFILE_H264_CAVLC_444, "CAVLC 4:4:4" },
|
3417 |
{ FF_PROFILE_UNKNOWN }, |
3418 |
}; |
3419 |
|
3420 |
AVCodec ff_h264_decoder = { |
3421 |
"h264",
|
3422 |
AVMEDIA_TYPE_VIDEO, |
3423 |
CODEC_ID_H264, |
3424 |
sizeof(H264Context),
|
3425 |
ff_h264_decode_init, |
3426 |
NULL,
|
3427 |
ff_h264_decode_end, |
3428 |
decode_frame, |
3429 |
/*CODEC_CAP_DRAW_HORIZ_BAND |*/ CODEC_CAP_DR1 | CODEC_CAP_DELAY,
|
3430 |
.flush= flush_dpb, |
3431 |
.long_name = NULL_IF_CONFIG_SMALL("H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10"),
|
3432 |
.profiles = NULL_IF_CONFIG_SMALL(profiles), |
3433 |
}; |
3434 |
|
3435 |
#if CONFIG_H264_VDPAU_DECODER
|
3436 |
AVCodec ff_h264_vdpau_decoder = { |
3437 |
"h264_vdpau",
|
3438 |
AVMEDIA_TYPE_VIDEO, |
3439 |
CODEC_ID_H264, |
3440 |
sizeof(H264Context),
|
3441 |
ff_h264_decode_init, |
3442 |
NULL,
|
3443 |
ff_h264_decode_end, |
3444 |
decode_frame, |
3445 |
CODEC_CAP_DR1 | CODEC_CAP_DELAY | CODEC_CAP_HWACCEL_VDPAU, |
3446 |
.flush= flush_dpb, |
3447 |
.long_name = NULL_IF_CONFIG_SMALL("H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10 (VDPAU acceleration)"),
|
3448 |
.pix_fmts = (const enum PixelFormat[]){PIX_FMT_VDPAU_H264, PIX_FMT_NONE}, |
3449 |
.profiles = NULL_IF_CONFIG_SMALL(profiles), |
3450 |
}; |
3451 |
#endif
|